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Finding the Fourth Proportional to 8,528.43, 12,769.02 and 4,359.46

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Solution

The fourth proportional to 8,528.43, 12,769.02 and 4,359.46 is: 6,527.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,528.43 : 12,769.02 = 4,359.46 : x
  2. Step 2: Convert to fraction form
    8,528.43/12,769.02 = 4,359.46/x
  3. Step 3: Cross multiply
    8,528.43x = 12,769.02 × 4,359.46
  4. Step 4: Simplify right side
    8,528.43x = 55,666,031.93
  5. Step 5: Solve for x
    x = 55,666,031.93/8,528.43
  6. Step 6: Final answer
    x = 6,527.11

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.