Home / 15,049.60-20,766.32-8,335.64

Finding the Fourth Proportional to 15,049.60, 20,766.32 and 8,335.64

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Solution

The fourth proportional to 15,049.60, 20,766.32 and 8,335.64 is: 11,502.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,049.60 : 20,766.32 = 8,335.64 : x
  2. Step 2: Convert to fraction form
    15,049.60/20,766.32 = 8,335.64/x
  3. Step 3: Cross multiply
    15,049.60x = 20,766.32 × 8,335.64
  4. Step 4: Simplify right side
    15,049.60x = 173,100,567.64
  5. Step 5: Solve for x
    x = 173,100,567.64/15,049.60
  6. Step 6: Final answer
    x = 11,502.00

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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.