Home / 7,375.02-10,167.58-7,145.70

Finding the Fourth Proportional to 7,375.02, 10,167.58 and 7,145.70

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Solution

The fourth proportional to 7,375.02, 10,167.58 and 7,145.70 is: 9,851.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,375.02 : 10,167.58 = 7,145.70 : x
  2. Step 2: Convert to fraction form
    7,375.02/10,167.58 = 7,145.70/x
  3. Step 3: Cross multiply
    7,375.02x = 10,167.58 × 7,145.70
  4. Step 4: Simplify right side
    7,375.02x = 72,654,440.68
  5. Step 5: Solve for x
    x = 72,654,440.68/7,375.02
  6. Step 6: Final answer
    x = 9,851.42

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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.