Home / 11,479.01-15,841.05-6,442.75

Finding the Fourth Proportional to 11,479.01, 15,841.05 and 6,442.75

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Solution

The fourth proportional to 11,479.01, 15,841.05 and 6,442.75 is: 8,891.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,479.01 : 15,841.05 = 6,442.75 : x
  2. Step 2: Convert to fraction form
    11,479.01/15,841.05 = 6,442.75/x
  3. Step 3: Cross multiply
    11,479.01x = 15,841.05 × 6,442.75
  4. Step 4: Simplify right side
    11,479.01x = 102,059,885.28
  5. Step 5: Solve for x
    x = 102,059,885.28/11,479.01
  6. Step 6: Final answer
    x = 8,891.00

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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.