Home / 9,040.50-13,557.42-3,115.80

Finding the Fourth Proportional to 9,040.50, 13,557.42 and 3,115.80

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Solution

The fourth proportional to 9,040.50, 13,557.42 and 3,115.80 is: 4,672.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,040.50 : 13,557.42 = 3,115.80 : x
  2. Step 2: Convert to fraction form
    9,040.50/13,557.42 = 3,115.80/x
  3. Step 3: Cross multiply
    9,040.50x = 13,557.42 × 3,115.80
  4. Step 4: Simplify right side
    9,040.50x = 42,242,209.24
  5. Step 5: Solve for x
    x = 42,242,209.24/9,040.50
  6. Step 6: Final answer
    x = 4,672.55

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Double scale
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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.