Home / 18,475.28-27,712.45-5,148.22

Finding the Fourth Proportional to 18,475.28, 27,712.45 and 5,148.22

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Solution

The fourth proportional to 18,475.28, 27,712.45 and 5,148.22 is: 7,722.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,475.28 : 27,712.45 = 5,148.22 : x
  2. Step 2: Convert to fraction form
    18,475.28/27,712.45 = 5,148.22/x
  3. Step 3: Cross multiply
    18,475.28x = 27,712.45 × 5,148.22
  4. Step 4: Simplify right side
    18,475.28x = 142,669,726.49
  5. Step 5: Solve for x
    x = 142,669,726.49/18,475.28
  6. Step 6: Final answer
    x = 7,722.19

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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.