Home / 10,169.10-15,261.30-4,329.78

Finding the Fourth Proportional to 10,169.10, 15,261.30 and 4,329.78

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Solution

The fourth proportional to 10,169.10, 15,261.30 and 4,329.78 is: 6,497.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,169.10 : 15,261.30 = 4,329.78 : x
  2. Step 2: Convert to fraction form
    10,169.10/15,261.30 = 4,329.78/x
  3. Step 3: Cross multiply
    10,169.10x = 15,261.30 × 4,329.78
  4. Step 4: Simplify right side
    10,169.10x = 66,078,071.51
  5. Step 5: Solve for x
    x = 66,078,071.51/10,169.10
  6. Step 6: Final answer
    x = 6,497.93

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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.