Home / 15,314.66-21,136.10-8,600.58

Finding the Fourth Proportional to 15,314.66, 21,136.10 and 8,600.58

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Solution

The fourth proportional to 15,314.66, 21,136.10 and 8,600.58 is: 11,869.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,314.66 : 21,136.10 = 8,600.58 : x
  2. Step 2: Convert to fraction form
    15,314.66/21,136.10 = 8,600.58/x
  3. Step 3: Cross multiply
    15,314.66x = 21,136.10 × 8,600.58
  4. Step 4: Simplify right side
    15,314.66x = 181,782,718.94
  5. Step 5: Solve for x
    x = 181,782,718.94/15,314.66
  6. Step 6: Final answer
    x = 11,869.85

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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.