Home / 11,394.24-15,725.52-9,165.12

Finding the Fourth Proportional to 11,394.24, 15,725.52 and 9,165.12

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Solution

The fourth proportional to 11,394.24, 15,725.52 and 9,165.12 is: 12,649.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,394.24 : 15,725.52 = 9,165.12 : x
  2. Step 2: Convert to fraction form
    11,394.24/15,725.52 = 9,165.12/x
  3. Step 3: Cross multiply
    11,394.24x = 15,725.52 × 9,165.12
  4. Step 4: Simplify right side
    11,394.24x = 144,126,277.86
  5. Step 5: Solve for x
    x = 144,126,277.86/11,394.24
  6. Step 6: Final answer
    x = 12,649.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.