Home / 10,143.96-15,218.60-3,569.16

Finding the Fourth Proportional to 10,143.96, 15,218.60 and 3,569.16

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Solution

The fourth proportional to 10,143.96, 15,218.60 and 3,569.16 is: 5,354.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,143.96 : 15,218.60 = 3,569.16 : x
  2. Step 2: Convert to fraction form
    10,143.96/15,218.60 = 3,569.16/x
  3. Step 3: Cross multiply
    10,143.96x = 15,218.60 × 3,569.16
  4. Step 4: Simplify right side
    10,143.96x = 54,317,618.38
  5. Step 5: Solve for x
    x = 54,317,618.38/10,143.96
  6. Step 6: Final answer
    x = 5,354.68

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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.