Home / 18,119.30-24,995.18-11,392.25

Finding the Fourth Proportional to 18,119.30, 24,995.18 and 11,392.25

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Solution

The fourth proportional to 18,119.30, 24,995.18 and 11,392.25 is: 15,715.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,119.30 : 24,995.18 = 11,392.25 : x
  2. Step 2: Convert to fraction form
    18,119.30/24,995.18 = 11,392.25/x
  3. Step 3: Cross multiply
    18,119.30x = 24,995.18 × 11,392.25
  4. Step 4: Simplify right side
    18,119.30x = 284,751,242.86
  5. Step 5: Solve for x
    x = 284,751,242.86/18,119.30
  6. Step 6: Final answer
    x = 15,715.36

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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.