Home / 10,142.18-15,214.05-3,569.84

Finding the Fourth Proportional to 10,142.18, 15,214.05 and 3,569.84

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Solution

The fourth proportional to 10,142.18, 15,214.05 and 3,569.84 is: 5,355.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,142.18 : 15,214.05 = 3,569.84 : x
  2. Step 2: Convert to fraction form
    10,142.18/15,214.05 = 3,569.84/x
  3. Step 3: Cross multiply
    10,142.18x = 15,214.05 × 3,569.84
  4. Step 4: Simplify right side
    10,142.18x = 54,311,648.18
  5. Step 5: Solve for x
    x = 54,311,648.18/10,142.18
  6. Step 6: Final answer
    x = 5,355.03

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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.