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Finding the Fourth Proportional to 8,652.11, 12,988.44 and 7,282.49

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Solution

The fourth proportional to 8,652.11, 12,988.44 and 7,282.49 is: 10,932.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,652.11 : 12,988.44 = 7,282.49 : x
  2. Step 2: Convert to fraction form
    8,652.11/12,988.44 = 7,282.49/x
  3. Step 3: Cross multiply
    8,652.11x = 12,988.44 × 7,282.49
  4. Step 4: Simplify right side
    8,652.11x = 94,588,119.47
  5. Step 5: Solve for x
    x = 94,588,119.47/8,652.11
  6. Step 6: Final answer
    x = 10,932.38

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1.5x scale

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.