Home / 7,518.53-10,375.13-4,161.15

Finding the Fourth Proportional to 7,518.53, 10,375.13 and 4,161.15

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Solution

The fourth proportional to 7,518.53, 10,375.13 and 4,161.15 is: 5,742.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,518.53 : 10,375.13 = 4,161.15 : x
  2. Step 2: Convert to fraction form
    7,518.53/10,375.13 = 4,161.15/x
  3. Step 3: Cross multiply
    7,518.53x = 10,375.13 × 4,161.15
  4. Step 4: Simplify right side
    7,518.53x = 43,172,424.16
  5. Step 5: Solve for x
    x = 43,172,424.16/7,518.53
  6. Step 6: Final answer
    x = 5,742.13

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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.