Home / 8,781.52-13,176.84-3,854.63

Finding the Fourth Proportional to 8,781.52, 13,176.84 and 3,854.63

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Solution

The fourth proportional to 8,781.52, 13,176.84 and 3,854.63 is: 5,783.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,781.52 : 13,176.84 = 3,854.63 : x
  2. Step 2: Convert to fraction form
    8,781.52/13,176.84 = 3,854.63/x
  3. Step 3: Cross multiply
    8,781.52x = 13,176.84 × 3,854.63
  4. Step 4: Simplify right side
    8,781.52x = 50,791,842.77
  5. Step 5: Solve for x
    x = 50,791,842.77/8,781.52
  6. Step 6: Final answer
    x = 5,783.95

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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.