Home / 10,491.48-15,721.38-6,326.87

Finding the Fourth Proportional to 10,491.48, 15,721.38 and 6,326.87

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Solution

The fourth proportional to 10,491.48, 15,721.38 and 6,326.87 is: 9,480.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,491.48 : 15,721.38 = 6,326.87 : x
  2. Step 2: Convert to fraction form
    10,491.48/15,721.38 = 6,326.87/x
  3. Step 3: Cross multiply
    10,491.48x = 15,721.38 × 6,326.87
  4. Step 4: Simplify right side
    10,491.48x = 99,467,048.87
  5. Step 5: Solve for x
    x = 99,467,048.87/10,491.48
  6. Step 6: Final answer
    x = 9,480.75

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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.