Home / 11,878.98-17,819.10-10,136.16

Finding the Fourth Proportional to 11,878.98, 17,819.10 and 10,136.16

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Solution

The fourth proportional to 11,878.98, 17,819.10 and 10,136.16 is: 15,204.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,878.98 : 17,819.10 = 10,136.16 : x
  2. Step 2: Convert to fraction form
    11,878.98/17,819.10 = 10,136.16/x
  3. Step 3: Cross multiply
    11,878.98x = 17,819.10 × 10,136.16
  4. Step 4: Simplify right side
    11,878.98x = 180,617,248.66
  5. Step 5: Solve for x
    x = 180,617,248.66/11,878.98
  6. Step 6: Final answer
    x = 15,204.78

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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.