Home / 11,158.64-15,399.12-6,122.55

Finding the Fourth Proportional to 11,158.64, 15,399.12 and 6,122.55

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Solution

The fourth proportional to 11,158.64, 15,399.12 and 6,122.55 is: 8,449.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,158.64 : 15,399.12 = 6,122.55 : x
  2. Step 2: Convert to fraction form
    11,158.64/15,399.12 = 6,122.55/x
  3. Step 3: Cross multiply
    11,158.64x = 15,399.12 × 6,122.55
  4. Step 4: Simplify right side
    11,158.64x = 94,281,882.16
  5. Step 5: Solve for x
    x = 94,281,882.16/11,158.64
  6. Step 6: Final answer
    x = 8,449.23

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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.