Home / 10,290.03-15,391.09-8,591.10

Finding the Fourth Proportional to 10,290.03, 15,391.09 and 8,591.10

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Solution

The fourth proportional to 10,290.03, 15,391.09 and 8,591.10 is: 12,849.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,290.03 : 15,391.09 = 8,591.10 : x
  2. Step 2: Convert to fraction form
    10,290.03/15,391.09 = 8,591.10/x
  3. Step 3: Cross multiply
    10,290.03x = 15,391.09 × 8,591.10
  4. Step 4: Simplify right side
    10,290.03x = 132,226,393.30
  5. Step 5: Solve for x
    x = 132,226,393.30/10,290.03
  6. Step 6: Final answer
    x = 12,849.95

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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.