Home / 15,177.42-22,776.36-5,316.78

Finding the Fourth Proportional to 15,177.42, 22,776.36 and 5,316.78

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Solution

The fourth proportional to 15,177.42, 22,776.36 and 5,316.78 is: 7,978.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,177.42 : 22,776.36 = 5,316.78 : x
  2. Step 2: Convert to fraction form
    15,177.42/22,776.36 = 5,316.78/x
  3. Step 3: Cross multiply
    15,177.42x = 22,776.36 × 5,316.78
  4. Step 4: Simplify right side
    15,177.42x = 121,096,895.32
  5. Step 5: Solve for x
    x = 121,096,895.32/15,177.42
  6. Step 6: Final answer
    x = 7,978.75

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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.