Home / 18,238.72-25,169.52-10,281.28

Finding the Fourth Proportional to 18,238.72, 25,169.52 and 10,281.28

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Solution

The fourth proportional to 18,238.72, 25,169.52 and 10,281.28 is: 14,188.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,238.72 : 25,169.52 = 10,281.28 : x
  2. Step 2: Convert to fraction form
    18,238.72/25,169.52 = 10,281.28/x
  3. Step 3: Cross multiply
    18,238.72x = 25,169.52 × 10,281.28
  4. Step 4: Simplify right side
    18,238.72x = 258,774,882.59
  5. Step 5: Solve for x
    x = 258,774,882.59/18,238.72
  6. Step 6: Final answer
    x = 14,188.22

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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.