Home / 11,400.88-17,085.36-8,625.28

Finding the Fourth Proportional to 11,400.88, 17,085.36 and 8,625.28

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Solution

The fourth proportional to 11,400.88, 17,085.36 and 8,625.28 is: 12,925.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,400.88 : 17,085.36 = 8,625.28 : x
  2. Step 2: Convert to fraction form
    11,400.88/17,085.36 = 8,625.28/x
  3. Step 3: Cross multiply
    11,400.88x = 17,085.36 × 8,625.28
  4. Step 4: Simplify right side
    11,400.88x = 147,366,013.90
  5. Step 5: Solve for x
    x = 147,366,013.90/11,400.88
  6. Step 6: Final answer
    x = 12,925.85

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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.