Home / 14,001.19-19,321.64-7,713.70

Finding the Fourth Proportional to 14,001.19, 19,321.64 and 7,713.70

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Solution

The fourth proportional to 14,001.19, 19,321.64 and 7,713.70 is: 10,644.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,001.19 : 19,321.64 = 7,713.70 : x
  2. Step 2: Convert to fraction form
    14,001.19/19,321.64 = 7,713.70/x
  3. Step 3: Cross multiply
    14,001.19x = 19,321.64 × 7,713.70
  4. Step 4: Simplify right side
    14,001.19x = 149,041,276.52
  5. Step 5: Solve for x
    x = 149,041,276.52/14,001.19
  6. Step 6: Final answer
    x = 10,644.90

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Half scale
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Double scale
Find fourth proportional to 14,002.19, 19,323.02 and 7,714.70
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.