Home / 10,355.19-15,531.16-3,429.69

Finding the Fourth Proportional to 10,355.19, 15,531.16 and 3,429.69

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Solution

The fourth proportional to 10,355.19, 15,531.16 and 3,429.69 is: 5,144.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,355.19 : 15,531.16 = 3,429.69 : x
  2. Step 2: Convert to fraction form
    10,355.19/15,531.16 = 3,429.69/x
  3. Step 3: Cross multiply
    10,355.19x = 15,531.16 × 3,429.69
  4. Step 4: Simplify right side
    10,355.19x = 53,267,064.14
  5. Step 5: Solve for x
    x = 53,267,064.14/10,355.19
  6. Step 6: Final answer
    x = 5,144.00

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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.