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Finding the Fourth Proportional to 8,752.85, 12,080.88 and 5,565.53

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Solution

The fourth proportional to 8,752.85, 12,080.88 and 5,565.53 is: 7,681.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,752.85 : 12,080.88 = 5,565.53 : x
  2. Step 2: Convert to fraction form
    8,752.85/12,080.88 = 5,565.53/x
  3. Step 3: Cross multiply
    8,752.85x = 12,080.88 × 5,565.53
  4. Step 4: Simplify right side
    8,752.85x = 67,236,439.66
  5. Step 5: Solve for x
    x = 67,236,439.66/8,752.85
  6. Step 6: Final answer
    x = 7,681.67

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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.