Home / 7,515.80-11,278.18-4,008.42

Finding the Fourth Proportional to 7,515.80, 11,278.18 and 4,008.42

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Solution

The fourth proportional to 7,515.80, 11,278.18 and 4,008.42 is: 6,015.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,515.80 : 11,278.18 = 4,008.42 : x
  2. Step 2: Convert to fraction form
    7,515.80/11,278.18 = 4,008.42/x
  3. Step 3: Cross multiply
    7,515.80x = 11,278.18 × 4,008.42
  4. Step 4: Simplify right side
    7,515.80x = 45,207,682.28
  5. Step 5: Solve for x
    x = 45,207,682.28/7,515.80
  6. Step 6: Final answer
    x = 6,015.02

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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.