Home / 10,274.80-15,412.20-8,160.70

Finding the Fourth Proportional to 10,274.80, 15,412.20 and 8,160.70

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Solution

The fourth proportional to 10,274.80, 15,412.20 and 8,160.70 is: 12,241.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,274.80 : 15,412.20 = 8,160.70 : x
  2. Step 2: Convert to fraction form
    10,274.80/15,412.20 = 8,160.70/x
  3. Step 3: Cross multiply
    10,274.80x = 15,412.20 × 8,160.70
  4. Step 4: Simplify right side
    10,274.80x = 125,774,340.54
  5. Step 5: Solve for x
    x = 125,774,340.54/10,274.80
  6. Step 6: Final answer
    x = 12,241.05

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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.