Home / 18,543.80-25,590.12-11,468.36

Finding the Fourth Proportional to 18,543.80, 25,590.12 and 11,468.36

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Solution

The fourth proportional to 18,543.80, 25,590.12 and 11,468.36 is: 15,826.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,543.80 : 25,590.12 = 11,468.36 : x
  2. Step 2: Convert to fraction form
    18,543.80/25,590.12 = 11,468.36/x
  3. Step 3: Cross multiply
    18,543.80x = 25,590.12 × 11,468.36
  4. Step 4: Simplify right side
    18,543.80x = 293,476,708.60
  5. Step 5: Solve for x
    x = 293,476,708.60/18,543.80
  6. Step 6: Final answer
    x = 15,826.14

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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.