Home / 18,968.86-28,439.25-9,098.74

Finding the Fourth Proportional to 18,968.86, 28,439.25 and 9,098.74

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Solution

The fourth proportional to 18,968.86, 28,439.25 and 9,098.74 is: 13,641.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,968.86 : 28,439.25 = 9,098.74 : x
  2. Step 2: Convert to fraction form
    18,968.86/28,439.25 = 9,098.74/x
  3. Step 3: Cross multiply
    18,968.86x = 28,439.25 × 9,098.74
  4. Step 4: Simplify right side
    18,968.86x = 258,761,341.55
  5. Step 5: Solve for x
    x = 258,761,341.55/18,968.86
  6. Step 6: Final answer
    x = 13,641.38

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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.