Home / 6,780.20-10,176.30-4,003.40

Finding the Fourth Proportional to 6,780.20, 10,176.30 and 4,003.40

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Solution

The fourth proportional to 6,780.20, 10,176.30 and 4,003.40 is: 6,008.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,780.20 : 10,176.30 = 4,003.40 : x
  2. Step 2: Convert to fraction form
    6,780.20/10,176.30 = 4,003.40/x
  3. Step 3: Cross multiply
    6,780.20x = 10,176.30 × 4,003.40
  4. Step 4: Simplify right side
    6,780.20x = 40,739,799.42
  5. Step 5: Solve for x
    x = 40,739,799.42/6,780.20
  6. Step 6: Final answer
    x = 6,008.64

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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.