Home / 15,163.28-20,925.40-8,793.64

Finding the Fourth Proportional to 15,163.28, 20,925.40 and 8,793.64

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Solution

The fourth proportional to 15,163.28, 20,925.40 and 8,793.64 is: 12,135.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,163.28 : 20,925.40 = 8,793.64 : x
  2. Step 2: Convert to fraction form
    15,163.28/20,925.40 = 8,793.64/x
  3. Step 3: Cross multiply
    15,163.28x = 20,925.40 × 8,793.64
  4. Step 4: Simplify right side
    15,163.28x = 184,010,534.91
  5. Step 5: Solve for x
    x = 184,010,534.91/15,163.28
  6. Step 6: Final answer
    x = 12,135.28

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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.