Home / 9,078.30-13,679.24-7,470.90

Finding the Fourth Proportional to 9,078.30, 13,679.24 and 7,470.90

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Solution

The fourth proportional to 9,078.30, 13,679.24 and 7,470.90 is: 11,257.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,078.30 : 13,679.24 = 7,470.90 : x
  2. Step 2: Convert to fraction form
    9,078.30/13,679.24 = 7,470.90/x
  3. Step 3: Cross multiply
    9,078.30x = 13,679.24 × 7,470.90
  4. Step 4: Simplify right side
    9,078.30x = 102,196,196.76
  5. Step 5: Solve for x
    x = 102,196,196.76/9,078.30
  6. Step 6: Final answer
    x = 11,257.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.