Home / 10,456.14-15,685-2,664.88

Finding the Fourth Proportional to 10,456.14, 15,685 and 2,664.88

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Solution

The fourth proportional to 10,456.14, 15,685 and 2,664.88 is: 3,997.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,456.14 : 15,685 = 2,664.88 : x
  2. Step 2: Convert to fraction form
    10,456.14/15,685 = 2,664.88/x
  3. Step 3: Cross multiply
    10,456.14x = 15,685 × 2,664.88
  4. Step 4: Simplify right side
    10,456.14x = 41,798,642.80
  5. Step 5: Solve for x
    x = 41,798,642.80/10,456.14
  6. Step 6: Final answer
    x = 3,997.52

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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.