Home / 10,265.28-15,397.44-7,136.02

Finding the Fourth Proportional to 10,265.28, 15,397.44 and 7,136.02

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Solution

The fourth proportional to 10,265.28, 15,397.44 and 7,136.02 is: 10,703.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,265.28 : 15,397.44 = 7,136.02 : x
  2. Step 2: Convert to fraction form
    10,265.28/15,397.44 = 7,136.02/x
  3. Step 3: Cross multiply
    10,265.28x = 15,397.44 × 7,136.02
  4. Step 4: Simplify right side
    10,265.28x = 109,876,439.79
  5. Step 5: Solve for x
    x = 109,876,439.79/10,265.28
  6. Step 6: Final answer
    x = 10,703.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.