Home / 18,760.40-28,126.66-11,363.12

Finding the Fourth Proportional to 18,760.40, 28,126.66 and 11,363.12

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Solution

The fourth proportional to 18,760.40, 28,126.66 and 11,363.12 is: 17,036.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,760.40 : 28,126.66 = 11,363.12 : x
  2. Step 2: Convert to fraction form
    18,760.40/28,126.66 = 11,363.12/x
  3. Step 3: Cross multiply
    18,760.40x = 28,126.66 × 11,363.12
  4. Step 4: Simplify right side
    18,760.40x = 319,606,612.78
  5. Step 5: Solve for x
    x = 319,606,612.78/18,760.40
  6. Step 6: Final answer
    x = 17,036.24

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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.