Home / 10,115.09-15,136.74-6,165.17

Finding the Fourth Proportional to 10,115.09, 15,136.74 and 6,165.17

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Solution

The fourth proportional to 10,115.09, 15,136.74 and 6,165.17 is: 9,225.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,115.09 : 15,136.74 = 6,165.17 : x
  2. Step 2: Convert to fraction form
    10,115.09/15,136.74 = 6,165.17/x
  3. Step 3: Cross multiply
    10,115.09x = 15,136.74 × 6,165.17
  4. Step 4: Simplify right side
    10,115.09x = 93,320,575.35
  5. Step 5: Solve for x
    x = 93,320,575.35/10,115.09
  6. Step 6: Final answer
    x = 9,225.88

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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.