Home / 11,356.33-15,670.65-8,373.78

Finding the Fourth Proportional to 11,356.33, 15,670.65 and 8,373.78

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Solution

The fourth proportional to 11,356.33, 15,670.65 and 8,373.78 is: 11,555.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,356.33 : 15,670.65 = 8,373.78 : x
  2. Step 2: Convert to fraction form
    11,356.33/15,670.65 = 8,373.78/x
  3. Step 3: Cross multiply
    11,356.33x = 15,670.65 × 8,373.78
  4. Step 4: Simplify right side
    11,356.33x = 131,222,575.56
  5. Step 5: Solve for x
    x = 131,222,575.56/11,356.33
  6. Step 6: Final answer
    x = 11,555.02

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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.