Home / 15,306.48-21,122.64-8,592.12

Finding the Fourth Proportional to 15,306.48, 21,122.64 and 8,592.12

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Solution

The fourth proportional to 15,306.48, 21,122.64 and 8,592.12 is: 11,856.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,306.48 : 21,122.64 = 8,592.12 : x
  2. Step 2: Convert to fraction form
    15,306.48/21,122.64 = 8,592.12/x
  3. Step 3: Cross multiply
    15,306.48x = 21,122.64 × 8,592.12
  4. Step 4: Simplify right side
    15,306.48x = 181,488,257.60
  5. Step 5: Solve for x
    x = 181,488,257.60/15,306.48
  6. Step 6: Final answer
    x = 11,856.96

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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.