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Finding the Fourth Proportional to 8,175.68, 12,298.08 and 7,035.20

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Solution

The fourth proportional to 8,175.68, 12,298.08 and 7,035.20 is: 10,582.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,175.68 : 12,298.08 = 7,035.20 : x
  2. Step 2: Convert to fraction form
    8,175.68/12,298.08 = 7,035.20/x
  3. Step 3: Cross multiply
    8,175.68x = 12,298.08 × 7,035.20
  4. Step 4: Simplify right side
    8,175.68x = 86,519,452.42
  5. Step 5: Solve for x
    x = 86,519,452.42/8,175.68
  6. Step 6: Final answer
    x = 10,582.54

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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.