Home / 15,160.96-20,923.76-8,878.60

Finding the Fourth Proportional to 15,160.96, 20,923.76 and 8,878.60

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Solution

The fourth proportional to 15,160.96, 20,923.76 and 8,878.60 is: 12,253.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,160.96 : 20,923.76 = 8,878.60 : x
  2. Step 2: Convert to fraction form
    15,160.96/20,923.76 = 8,878.60/x
  3. Step 3: Cross multiply
    15,160.96x = 20,923.76 × 8,878.60
  4. Step 4: Simplify right side
    15,160.96x = 185,773,695.54
  5. Step 5: Solve for x
    x = 185,773,695.54/15,160.96
  6. Step 6: Final answer
    x = 12,253.43

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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.