Home / 7,860.05-11,790.10-4,932.20

Finding the Fourth Proportional to 7,860.05, 11,790.10 and 4,932.20

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Solution

The fourth proportional to 7,860.05, 11,790.10 and 4,932.20 is: 7,398.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,860.05 : 11,790.10 = 4,932.20 : x
  2. Step 2: Convert to fraction form
    7,860.05/11,790.10 = 4,932.20/x
  3. Step 3: Cross multiply
    7,860.05x = 11,790.10 × 4,932.20
  4. Step 4: Simplify right side
    7,860.05x = 58,151,147.91
  5. Step 5: Solve for x
    x = 58,151,147.91/7,860.05
  6. Step 6: Final answer
    x = 7,398.32

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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.