Home / 10,272.48-15,443.20-8,107.36

Finding the Fourth Proportional to 10,272.48, 15,443.20 and 8,107.36

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Solution

The fourth proportional to 10,272.48, 15,443.20 and 8,107.36 is: 12,188.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,272.48 : 15,443.20 = 8,107.36 : x
  2. Step 2: Convert to fraction form
    10,272.48/15,443.20 = 8,107.36/x
  3. Step 3: Cross multiply
    10,272.48x = 15,443.20 × 8,107.36
  4. Step 4: Simplify right side
    10,272.48x = 125,203,581.95
  5. Step 5: Solve for x
    x = 125,203,581.95/10,272.48
  6. Step 6: Final answer
    x = 12,188.25

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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.