Home / 8,712.28-13,070.04-2,869.30

Finding the Fourth Proportional to 8,712.28, 13,070.04 and 2,869.30

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Solution

The fourth proportional to 8,712.28, 13,070.04 and 2,869.30 is: 4,304.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,712.28 : 13,070.04 = 2,869.30 : x
  2. Step 2: Convert to fraction form
    8,712.28/13,070.04 = 2,869.30/x
  3. Step 3: Cross multiply
    8,712.28x = 13,070.04 × 2,869.30
  4. Step 4: Simplify right side
    8,712.28x = 37,501,865.77
  5. Step 5: Solve for x
    x = 37,501,865.77/8,712.28
  6. Step 6: Final answer
    x = 4,304.48

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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.