Home / 8,712.60-13,070.52-2,870.88

Finding the Fourth Proportional to 8,712.60, 13,070.52 and 2,870.88

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Solution

The fourth proportional to 8,712.60, 13,070.52 and 2,870.88 is: 4,306.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,712.60 : 13,070.52 = 2,870.88 : x
  2. Step 2: Convert to fraction form
    8,712.60/13,070.52 = 2,870.88/x
  3. Step 3: Cross multiply
    8,712.60x = 13,070.52 × 2,870.88
  4. Step 4: Simplify right side
    8,712.60x = 37,523,894.46
  5. Step 5: Solve for x
    x = 37,523,894.46/8,712.60
  6. Step 6: Final answer
    x = 4,306.85

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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.