Home / 9,431.30-13,008.66-5,451.78

Finding the Fourth Proportional to 9,431.30, 13,008.66 and 5,451.78

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Solution

The fourth proportional to 9,431.30, 13,008.66 and 5,451.78 is: 7,519.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,431.30 : 13,008.66 = 5,451.78 : x
  2. Step 2: Convert to fraction form
    9,431.30/13,008.66 = 5,451.78/x
  3. Step 3: Cross multiply
    9,431.30x = 13,008.66 × 5,451.78
  4. Step 4: Simplify right side
    9,431.30x = 70,920,352.41
  5. Step 5: Solve for x
    x = 70,920,352.41/9,431.30
  6. Step 6: Final answer
    x = 7,519.68

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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.