Home / 10,918.89-15,052.80-9,233.52

Finding the Fourth Proportional to 10,918.89, 15,052.80 and 9,233.52

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Solution

The fourth proportional to 10,918.89, 15,052.80 and 9,233.52 is: 12,729.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,918.89 : 15,052.80 = 9,233.52 : x
  2. Step 2: Convert to fraction form
    10,918.89/15,052.80 = 9,233.52/x
  3. Step 3: Cross multiply
    10,918.89x = 15,052.80 × 9,233.52
  4. Step 4: Simplify right side
    10,918.89x = 138,990,329.86
  5. Step 5: Solve for x
    x = 138,990,329.86/10,918.89
  6. Step 6: Final answer
    x = 12,729.35

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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.