Home / 10,871.60-15,002.38-6,155.89

Finding the Fourth Proportional to 10,871.60, 15,002.38 and 6,155.89

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Solution

The fourth proportional to 10,871.60, 15,002.38 and 6,155.89 is: 8,494.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,871.60 : 15,002.38 = 6,155.89 : x
  2. Step 2: Convert to fraction form
    10,871.60/15,002.38 = 6,155.89/x
  3. Step 3: Cross multiply
    10,871.60x = 15,002.38 × 6,155.89
  4. Step 4: Simplify right side
    10,871.60x = 92,352,971.21
  5. Step 5: Solve for x
    x = 92,352,971.21/10,871.60
  6. Step 6: Final answer
    x = 8,494.89

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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.