Home / 15,314.98-21,136.50-8,600.62

Finding the Fourth Proportional to 15,314.98, 21,136.50 and 8,600.62

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Solution

The fourth proportional to 15,314.98, 21,136.50 and 8,600.62 is: 11,869.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,314.98 : 21,136.50 = 8,600.62 : x
  2. Step 2: Convert to fraction form
    15,314.98/21,136.50 = 8,600.62/x
  3. Step 3: Cross multiply
    15,314.98x = 21,136.50 × 8,600.62
  4. Step 4: Simplify right side
    15,314.98x = 181,787,004.63
  5. Step 5: Solve for x
    x = 181,787,004.63/15,314.98
  6. Step 6: Final answer
    x = 11,869.88

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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.