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Finding the Fourth Proportional to 8,604.87, 12,909.58 and 2,681.74

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Solution

The fourth proportional to 8,604.87, 12,909.58 and 2,681.74 is: 4,023.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,604.87 : 12,909.58 = 2,681.74 : x
  2. Step 2: Convert to fraction form
    8,604.87/12,909.58 = 2,681.74/x
  3. Step 3: Cross multiply
    8,604.87x = 12,909.58 × 2,681.74
  4. Step 4: Simplify right side
    8,604.87x = 34,620,146.50
  5. Step 5: Solve for x
    x = 34,620,146.50/8,604.87
  6. Step 6: Final answer
    x = 4,023.32

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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.