Home / 10,891.46-15,029.94-6,354.98

Finding the Fourth Proportional to 10,891.46, 15,029.94 and 6,354.98

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Solution

The fourth proportional to 10,891.46, 15,029.94 and 6,354.98 is: 8,769.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,891.46 : 15,029.94 = 6,354.98 : x
  2. Step 2: Convert to fraction form
    10,891.46/15,029.94 = 6,354.98/x
  3. Step 3: Cross multiply
    10,891.46x = 15,029.94 × 6,354.98
  4. Step 4: Simplify right side
    10,891.46x = 95,514,968.10
  5. Step 5: Solve for x
    x = 95,514,968.10/10,891.46
  6. Step 6: Final answer
    x = 8,769.71

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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.