Home / 12,489.19-18,734.86-5,094.16

Finding the Fourth Proportional to 12,489.19, 18,734.86 and 5,094.16

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Solution

The fourth proportional to 12,489.19, 18,734.86 and 5,094.16 is: 7,641.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,489.19 : 18,734.86 = 5,094.16 : x
  2. Step 2: Convert to fraction form
    12,489.19/18,734.86 = 5,094.16/x
  3. Step 3: Cross multiply
    12,489.19x = 18,734.86 × 5,094.16
  4. Step 4: Simplify right side
    12,489.19x = 95,438,374.42
  5. Step 5: Solve for x
    x = 95,438,374.42/12,489.19
  6. Step 6: Final answer
    x = 7,641.68

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1.5x scale

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.