Home / 18,839.16-28,263.60-8,454.96

Finding the Fourth Proportional to 18,839.16, 28,263.60 and 8,454.96

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Solution

The fourth proportional to 18,839.16, 28,263.60 and 8,454.96 is: 12,684.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,839.16 : 28,263.60 = 8,454.96 : x
  2. Step 2: Convert to fraction form
    18,839.16/28,263.60 = 8,454.96/x
  3. Step 3: Cross multiply
    18,839.16x = 28,263.60 × 8,454.96
  4. Step 4: Simplify right side
    18,839.16x = 238,967,607.46
  5. Step 5: Solve for x
    x = 238,967,607.46/18,839.16
  6. Step 6: Final answer
    x = 12,684.62

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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.