Home / 10,136.30-13,988.31-6,359.61

Finding the Fourth Proportional to 10,136.30, 13,988.31 and 6,359.61

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Solution

The fourth proportional to 10,136.30, 13,988.31 and 6,359.61 is: 8,776.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,136.30 : 13,988.31 = 6,359.61 : x
  2. Step 2: Convert to fraction form
    10,136.30/13,988.31 = 6,359.61/x
  3. Step 3: Cross multiply
    10,136.30x = 13,988.31 × 6,359.61
  4. Step 4: Simplify right side
    10,136.30x = 88,960,196.16
  5. Step 5: Solve for x
    x = 88,960,196.16/10,136.30
  6. Step 6: Final answer
    x = 8,776.40

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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.