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Finding the Fourth Proportional to 15,597.66, 21,519.42 and 8,881.62

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Solution

The fourth proportional to 15,597.66, 21,519.42 and 8,881.62 is: 12,253.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,597.66 : 21,519.42 = 8,881.62 : x
  2. Step 2: Convert to fraction form
    15,597.66/21,519.42 = 8,881.62/x
  3. Step 3: Cross multiply
    15,597.66x = 21,519.42 × 8,881.62
  4. Step 4: Simplify right side
    15,597.66x = 191,127,311.06
  5. Step 5: Solve for x
    x = 191,127,311.06/15,597.66
  6. Step 6: Final answer
    x = 12,253.59

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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.