Home / 8,708.40-12,017.68-4,729.52

Finding the Fourth Proportional to 8,708.40, 12,017.68 and 4,729.52

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Solution

The fourth proportional to 8,708.40, 12,017.68 and 4,729.52 is: 6,526.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,708.40 : 12,017.68 = 4,729.52 : x
  2. Step 2: Convert to fraction form
    8,708.40/12,017.68 = 4,729.52/x
  3. Step 3: Cross multiply
    8,708.40x = 12,017.68 × 4,729.52
  4. Step 4: Simplify right side
    8,708.40x = 56,837,857.91
  5. Step 5: Solve for x
    x = 56,837,857.91/8,708.40
  6. Step 6: Final answer
    x = 6,526.79

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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.