Home / 15,306.41-21,122.30-8,592.32

Finding the Fourth Proportional to 15,306.41, 21,122.30 and 8,592.32

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Solution

The fourth proportional to 15,306.41, 21,122.30 and 8,592.32 is: 11,857.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,306.41 : 21,122.30 = 8,592.32 : x
  2. Step 2: Convert to fraction form
    15,306.41/21,122.30 = 8,592.32/x
  3. Step 3: Cross multiply
    15,306.41x = 21,122.30 × 8,592.32
  4. Step 4: Simplify right side
    15,306.41x = 181,489,635.02
  5. Step 5: Solve for x
    x = 181,489,635.02/15,306.41
  6. Step 6: Final answer
    x = 11,857.10

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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.