Home / 10,480.29-15,719.22-3,905.75

Finding the Fourth Proportional to 10,480.29, 15,719.22 and 3,905.75

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Solution

The fourth proportional to 10,480.29, 15,719.22 and 3,905.75 is: 5,858.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,480.29 : 15,719.22 = 3,905.75 : x
  2. Step 2: Convert to fraction form
    10,480.29/15,719.22 = 3,905.75/x
  3. Step 3: Cross multiply
    10,480.29x = 15,719.22 × 3,905.75
  4. Step 4: Simplify right side
    10,480.29x = 61,395,264.92
  5. Step 5: Solve for x
    x = 61,395,264.92/10,480.29
  6. Step 6: Final answer
    x = 5,858.16

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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.