Home / 10,129.50-13,979.07-5,938.02

Finding the Fourth Proportional to 10,129.50, 13,979.07 and 5,938.02

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Solution

The fourth proportional to 10,129.50, 13,979.07 and 5,938.02 is: 8,194.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,129.50 : 13,979.07 = 5,938.02 : x
  2. Step 2: Convert to fraction form
    10,129.50/13,979.07 = 5,938.02/x
  3. Step 3: Cross multiply
    10,129.50x = 13,979.07 × 5,938.02
  4. Step 4: Simplify right side
    10,129.50x = 83,007,997.24
  5. Step 5: Solve for x
    x = 83,007,997.24/10,129.50
  6. Step 6: Final answer
    x = 8,194.68

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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.