Home / 9,981.54-14,977.80-8,414.28

Finding the Fourth Proportional to 9,981.54, 14,977.80 and 8,414.28

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Solution

The fourth proportional to 9,981.54, 14,977.80 and 8,414.28 is: 12,626.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,981.54 : 14,977.80 = 8,414.28 : x
  2. Step 2: Convert to fraction form
    9,981.54/14,977.80 = 8,414.28/x
  3. Step 3: Cross multiply
    9,981.54x = 14,977.80 × 8,414.28
  4. Step 4: Simplify right side
    9,981.54x = 126,027,402.98
  5. Step 5: Solve for x
    x = 126,027,402.98/9,981.54
  6. Step 6: Final answer
    x = 12,626.05

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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.