Home / 9,128.97-13,677.57-8,910.99

Finding the Fourth Proportional to 9,128.97, 13,677.57 and 8,910.99

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Solution

The fourth proportional to 9,128.97, 13,677.57 and 8,910.99 is: 13,350.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,128.97 : 13,677.57 = 8,910.99 : x
  2. Step 2: Convert to fraction form
    9,128.97/13,677.57 = 8,910.99/x
  3. Step 3: Cross multiply
    9,128.97x = 13,677.57 × 8,910.99
  4. Step 4: Simplify right side
    9,128.97x = 121,880,689.49
  5. Step 5: Solve for x
    x = 121,880,689.49/9,128.97
  6. Step 6: Final answer
    x = 13,350.98

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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.