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Finding the Fourth Proportional to 8,909.76, 13,364.82 and 2,753.76

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Solution

The fourth proportional to 8,909.76, 13,364.82 and 2,753.76 is: 4,130.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,909.76 : 13,364.82 = 2,753.76 : x
  2. Step 2: Convert to fraction form
    8,909.76/13,364.82 = 2,753.76/x
  3. Step 3: Cross multiply
    8,909.76x = 13,364.82 × 2,753.76
  4. Step 4: Simplify right side
    8,909.76x = 36,803,506.72
  5. Step 5: Solve for x
    x = 36,803,506.72/8,909.76
  6. Step 6: Final answer
    x = 4,130.70

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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.