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Finding the Fourth Proportional to 8,708.59, 12,017.87 and 4,729.69

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Solution

The fourth proportional to 8,708.59, 12,017.87 and 4,729.69 is: 6,526.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,708.59 : 12,017.87 = 4,729.69 : x
  2. Step 2: Convert to fraction form
    8,708.59/12,017.87 = 4,729.69/x
  3. Step 3: Cross multiply
    8,708.59x = 12,017.87 × 4,729.69
  4. Step 4: Simplify right side
    8,708.59x = 56,840,808.67
  5. Step 5: Solve for x
    x = 56,840,808.67/8,708.59
  6. Step 6: Final answer
    x = 6,526.98

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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.