Home / 18,443.80-25,454.73-11,272.24

Finding the Fourth Proportional to 18,443.80, 25,454.73 and 11,272.24

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Solution

The fourth proportional to 18,443.80, 25,454.73 and 11,272.24 is: 15,557.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,443.80 : 25,454.73 = 11,272.24 : x
  2. Step 2: Convert to fraction form
    18,443.80/25,454.73 = 11,272.24/x
  3. Step 3: Cross multiply
    18,443.80x = 25,454.73 × 11,272.24
  4. Step 4: Simplify right side
    18,443.80x = 286,931,825.70
  5. Step 5: Solve for x
    x = 286,931,825.70/18,443.80
  6. Step 6: Final answer
    x = 15,557.09

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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.