Home / 10,614.20-15,925.40-3,218.72

Finding the Fourth Proportional to 10,614.20, 15,925.40 and 3,218.72

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Solution

The fourth proportional to 10,614.20, 15,925.40 and 3,218.72 is: 4,829.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,614.20 : 15,925.40 = 3,218.72 : x
  2. Step 2: Convert to fraction form
    10,614.20/15,925.40 = 3,218.72/x
  3. Step 3: Cross multiply
    10,614.20x = 15,925.40 × 3,218.72
  4. Step 4: Simplify right side
    10,614.20x = 51,259,403.49
  5. Step 5: Solve for x
    x = 51,259,403.49/10,614.20
  6. Step 6: Final answer
    x = 4,829.32

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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.