Home / 14,112.08-19,474.51-8,143.62

Finding the Fourth Proportional to 14,112.08, 19,474.51 and 8,143.62

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Solution

The fourth proportional to 14,112.08, 19,474.51 and 8,143.62 is: 11,238.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,112.08 : 19,474.51 = 8,143.62 : x
  2. Step 2: Convert to fraction form
    14,112.08/19,474.51 = 8,143.62/x
  3. Step 3: Cross multiply
    14,112.08x = 19,474.51 × 8,143.62
  4. Step 4: Simplify right side
    14,112.08x = 158,593,089.35
  5. Step 5: Solve for x
    x = 158,593,089.35/14,112.08
  6. Step 6: Final answer
    x = 11,238.11

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Half scale
Find fourth proportional to 28,224.17, 38,949.03 and 16,287.25
Double scale
Find fourth proportional to 14,113.08, 19,475.89 and 8,144.62
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.