Home / 11,479.57-15,841.80-6,443.79

Finding the Fourth Proportional to 11,479.57, 15,841.80 and 6,443.79

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Solution

The fourth proportional to 11,479.57, 15,841.80 and 6,443.79 is: 8,892.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,479.57 : 15,841.80 = 6,443.79 : x
  2. Step 2: Convert to fraction form
    11,479.57/15,841.80 = 6,443.79/x
  3. Step 3: Cross multiply
    11,479.57x = 15,841.80 × 6,443.79
  4. Step 4: Simplify right side
    11,479.57x = 102,081,232.42
  5. Step 5: Solve for x
    x = 102,081,232.42/11,479.57
  6. Step 6: Final answer
    x = 8,892.43

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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.