Home / 10,127.89-13,975.90-5,651.29

Finding the Fourth Proportional to 10,127.89, 13,975.90 and 5,651.29

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Solution

The fourth proportional to 10,127.89, 13,975.90 and 5,651.29 is: 7,798.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,127.89 : 13,975.90 = 5,651.29 : x
  2. Step 2: Convert to fraction form
    10,127.89/13,975.90 = 5,651.29/x
  3. Step 3: Cross multiply
    10,127.89x = 13,975.90 × 5,651.29
  4. Step 4: Simplify right side
    10,127.89x = 78,981,863.91
  5. Step 5: Solve for x
    x = 78,981,863.91/10,127.89
  6. Step 6: Final answer
    x = 7,798.45

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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.