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Finding the Fourth Proportional to 8,652.12, 11,944.51 and 6,931.90

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Solution

The fourth proportional to 8,652.12, 11,944.51 and 6,931.90 is: 9,569.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,652.12 : 11,944.51 = 6,931.90 : x
  2. Step 2: Convert to fraction form
    8,652.12/11,944.51 = 6,931.90/x
  3. Step 3: Cross multiply
    8,652.12x = 11,944.51 × 6,931.90
  4. Step 4: Simplify right side
    8,652.12x = 82,798,219.06
  5. Step 5: Solve for x
    x = 82,798,219.06/8,652.12
  6. Step 6: Final answer
    x = 9,569.71

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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.