Home / 13,261.38-18,304.83-8,545.68

Finding the Fourth Proportional to 13,261.38, 18,304.83 and 8,545.68

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Solution

The fourth proportional to 13,261.38, 18,304.83 and 8,545.68 is: 11,795.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,261.38 : 18,304.83 = 8,545.68 : x
  2. Step 2: Convert to fraction form
    13,261.38/18,304.83 = 8,545.68/x
  3. Step 3: Cross multiply
    13,261.38x = 18,304.83 × 8,545.68
  4. Step 4: Simplify right side
    13,261.38x = 156,427,219.63
  5. Step 5: Solve for x
    x = 156,427,219.63/13,261.38
  6. Step 6: Final answer
    x = 11,795.70

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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.