Home / 7,424.15-11,151.60-7,175.03

Finding the Fourth Proportional to 7,424.15, 11,151.60 and 7,175.03

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Solution

The fourth proportional to 7,424.15, 11,151.60 and 7,175.03 is: 10,777.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,424.15 : 11,151.60 = 7,175.03 : x
  2. Step 2: Convert to fraction form
    7,424.15/11,151.60 = 7,175.03/x
  3. Step 3: Cross multiply
    7,424.15x = 11,151.60 × 7,175.03
  4. Step 4: Simplify right side
    7,424.15x = 80,013,008.79
  5. Step 5: Solve for x
    x = 80,013,008.79/7,424.15
  6. Step 6: Final answer
    x = 10,777.40

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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.