Home / 14,112.46-19,478.37-8,145.19

Finding the Fourth Proportional to 14,112.46, 19,478.37 and 8,145.19

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Solution

The fourth proportional to 14,112.46, 19,478.37 and 8,145.19 is: 11,242.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,112.46 : 19,478.37 = 8,145.19 : x
  2. Step 2: Convert to fraction form
    14,112.46/19,478.37 = 8,145.19/x
  3. Step 3: Cross multiply
    14,112.46x = 19,478.37 × 8,145.19
  4. Step 4: Simplify right side
    14,112.46x = 158,655,024.54
  5. Step 5: Solve for x
    x = 158,655,024.54/14,112.46
  6. Step 6: Final answer
    x = 11,242.19

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Half scale
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Double scale
Find fourth proportional to 14,113.46, 19,479.75 and 8,146.19
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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.