Home / 18,713.32-28,083.27-10,400.02

Finding the Fourth Proportional to 18,713.32, 28,083.27 and 10,400.02

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Solution

The fourth proportional to 18,713.32, 28,083.27 and 10,400.02 is: 15,607.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,713.32 : 28,083.27 = 10,400.02 : x
  2. Step 2: Convert to fraction form
    18,713.32/28,083.27 = 10,400.02/x
  3. Step 3: Cross multiply
    18,713.32x = 28,083.27 × 10,400.02
  4. Step 4: Simplify right side
    18,713.32x = 292,066,569.67
  5. Step 5: Solve for x
    x = 292,066,569.67/18,713.32
  6. Step 6: Final answer
    x = 15,607.42

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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.