Home / 15,177.09-22,765.79-5,316.36

Finding the Fourth Proportional to 15,177.09, 22,765.79 and 5,316.36

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Solution

The fourth proportional to 15,177.09, 22,765.79 and 5,316.36 is: 7,974.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,177.09 : 22,765.79 = 5,316.36 : x
  2. Step 2: Convert to fraction form
    15,177.09/22,765.79 = 5,316.36/x
  3. Step 3: Cross multiply
    15,177.09x = 22,765.79 × 5,316.36
  4. Step 4: Simplify right side
    15,177.09x = 121,031,135.32
  5. Step 5: Solve for x
    x = 121,031,135.32/15,177.09
  6. Step 6: Final answer
    x = 7,974.59

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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.