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Finding the Fourth Proportional to 8,565.48, 12,832.50 and 7,187.64

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Solution

The fourth proportional to 8,565.48, 12,832.50 and 7,187.64 is: 10,768.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,565.48 : 12,832.50 = 7,187.64 : x
  2. Step 2: Convert to fraction form
    8,565.48/12,832.50 = 7,187.64/x
  3. Step 3: Cross multiply
    8,565.48x = 12,832.50 × 7,187.64
  4. Step 4: Simplify right side
    8,565.48x = 92,235,390.30
  5. Step 5: Solve for x
    x = 92,235,390.30/8,565.48
  6. Step 6: Final answer
    x = 10,768.27

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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.