Home / 7,518.59-10,375.48-4,161.20

Finding the Fourth Proportional to 7,518.59, 10,375.48 and 4,161.20

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Solution

The fourth proportional to 7,518.59, 10,375.48 and 4,161.20 is: 5,742.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,518.59 : 10,375.48 = 4,161.20 : x
  2. Step 2: Convert to fraction form
    7,518.59/10,375.48 = 4,161.20/x
  3. Step 3: Cross multiply
    7,518.59x = 10,375.48 × 4,161.20
  4. Step 4: Simplify right side
    7,518.59x = 43,174,395.50
  5. Step 5: Solve for x
    x = 43,174,395.50/7,518.59
  6. Step 6: Final answer
    x = 5,742.36

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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.