Home / 15,126.67-20,873.60-8,412.31

Finding the Fourth Proportional to 15,126.67, 20,873.60 and 8,412.31

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Solution

The fourth proportional to 15,126.67, 20,873.60 and 8,412.31 is: 11,608.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,126.67 : 20,873.60 = 8,412.31 : x
  2. Step 2: Convert to fraction form
    15,126.67/20,873.60 = 8,412.31/x
  3. Step 3: Cross multiply
    15,126.67x = 20,873.60 × 8,412.31
  4. Step 4: Simplify right side
    15,126.67x = 175,595,151.95
  5. Step 5: Solve for x
    x = 175,595,151.95/15,126.67
  6. Step 6: Final answer
    x = 11,608.32

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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.