Home / 10,136.42-15,177.28-6,617.71

Finding the Fourth Proportional to 10,136.42, 15,177.28 and 6,617.71

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Solution

The fourth proportional to 10,136.42, 15,177.28 and 6,617.71 is: 9,908.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,136.42 : 15,177.28 = 6,617.71 : x
  2. Step 2: Convert to fraction form
    10,136.42/15,177.28 = 6,617.71/x
  3. Step 3: Cross multiply
    10,136.42x = 15,177.28 × 6,617.71
  4. Step 4: Simplify right side
    10,136.42x = 100,438,837.63
  5. Step 5: Solve for x
    x = 100,438,837.63/10,136.42
  6. Step 6: Final answer
    x = 9,908.71

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1.5x scale

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.