Home / 9,119.92-13,655.20-4,728.15

Finding the Fourth Proportional to 9,119.92, 13,655.20 and 4,728.15

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Solution

The fourth proportional to 9,119.92, 13,655.20 and 4,728.15 is: 7,079.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,119.92 : 13,655.20 = 4,728.15 : x
  2. Step 2: Convert to fraction form
    9,119.92/13,655.20 = 4,728.15/x
  3. Step 3: Cross multiply
    9,119.92x = 13,655.20 × 4,728.15
  4. Step 4: Simplify right side
    9,119.92x = 64,563,833.88
  5. Step 5: Solve for x
    x = 64,563,833.88/9,119.92
  6. Step 6: Final answer
    x = 7,079.43

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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.