Home / 15,186.86-22,780.48-5,326.42

Finding the Fourth Proportional to 15,186.86, 22,780.48 and 5,326.42

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Solution

The fourth proportional to 15,186.86, 22,780.48 and 5,326.42 is: 7,989.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,186.86 : 22,780.48 = 5,326.42 : x
  2. Step 2: Convert to fraction form
    15,186.86/22,780.48 = 5,326.42/x
  3. Step 3: Cross multiply
    15,186.86x = 22,780.48 × 5,326.42
  4. Step 4: Simplify right side
    15,186.86x = 121,338,417.60
  5. Step 5: Solve for x
    x = 121,338,417.60/15,186.86
  6. Step 6: Final answer
    x = 7,989.70

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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.