Home / 10,147.49-15,214.35-3,572.81

Finding the Fourth Proportional to 10,147.49, 15,214.35 and 3,572.81

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Solution

The fourth proportional to 10,147.49, 15,214.35 and 3,572.81 is: 5,356.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,147.49 : 15,214.35 = 3,572.81 : x
  2. Step 2: Convert to fraction form
    10,147.49/15,214.35 = 3,572.81/x
  3. Step 3: Cross multiply
    10,147.49x = 15,214.35 × 3,572.81
  4. Step 4: Simplify right side
    10,147.49x = 54,358,033.26
  5. Step 5: Solve for x
    x = 54,358,033.26/10,147.49
  6. Step 6: Final answer
    x = 5,356.79

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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.