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Finding the Fourth Proportional to 15,575.04, 21,494.04 and 8,861.64

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Solution

The fourth proportional to 15,575.04, 21,494.04 and 8,861.64 is: 12,229.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,575.04 : 21,494.04 = 8,861.64 : x
  2. Step 2: Convert to fraction form
    15,575.04/21,494.04 = 8,861.64/x
  3. Step 3: Cross multiply
    15,575.04x = 21,494.04 × 8,861.64
  4. Step 4: Simplify right side
    15,575.04x = 190,472,444.63
  5. Step 5: Solve for x
    x = 190,472,444.63/15,575.04
  6. Step 6: Final answer
    x = 12,229.34

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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.