Home / 15,613.94-21,549.80-11,607.38

Finding the Fourth Proportional to 15,613.94, 21,549.80 and 11,607.38

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Solution

The fourth proportional to 15,613.94, 21,549.80 and 11,607.38 is: 16,020.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,613.94 : 21,549.80 = 11,607.38 : x
  2. Step 2: Convert to fraction form
    15,613.94/21,549.80 = 11,607.38/x
  3. Step 3: Cross multiply
    15,613.94x = 21,549.80 × 11,607.38
  4. Step 4: Simplify right side
    15,613.94x = 250,136,717.52
  5. Step 5: Solve for x
    x = 250,136,717.52/15,613.94
  6. Step 6: Final answer
    x = 16,020.09

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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.