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Finding the Fourth Proportional to 15,595.53, 21,523.22 and 8,879.68

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Solution

The fourth proportional to 15,595.53, 21,523.22 and 8,879.68 is: 12,254.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,595.53 : 21,523.22 = 8,879.68 : x
  2. Step 2: Convert to fraction form
    15,595.53/21,523.22 = 8,879.68/x
  3. Step 3: Cross multiply
    15,595.53x = 21,523.22 × 8,879.68
  4. Step 4: Simplify right side
    15,595.53x = 191,119,306.17
  5. Step 5: Solve for x
    x = 191,119,306.17/15,595.53
  6. Step 6: Final answer
    x = 12,254.75

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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.