Home / 10,142.73-15,214.90-3,570.39

Finding the Fourth Proportional to 10,142.73, 15,214.90 and 3,570.39

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Solution

The fourth proportional to 10,142.73, 15,214.90 and 3,570.39 is: 5,355.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,142.73 : 15,214.90 = 3,570.39 : x
  2. Step 2: Convert to fraction form
    10,142.73/15,214.90 = 3,570.39/x
  3. Step 3: Cross multiply
    10,142.73x = 15,214.90 × 3,570.39
  4. Step 4: Simplify right side
    10,142.73x = 54,323,117.89
  5. Step 5: Solve for x
    x = 54,323,117.89/10,142.73
  6. Step 6: Final answer
    x = 5,355.87

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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.