Home / 13,548.87-18,691.19-8,770.35

Finding the Fourth Proportional to 13,548.87, 18,691.19 and 8,770.35

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Solution

The fourth proportional to 13,548.87, 18,691.19 and 8,770.35 is: 12,099.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,548.87 : 18,691.19 = 8,770.35 : x
  2. Step 2: Convert to fraction form
    13,548.87/18,691.19 = 8,770.35/x
  3. Step 3: Cross multiply
    13,548.87x = 18,691.19 × 8,770.35
  4. Step 4: Simplify right side
    13,548.87x = 163,928,278.22
  5. Step 5: Solve for x
    x = 163,928,278.22/13,548.87
  6. Step 6: Final answer
    x = 12,099.04

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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.