Home / 10,214.74-15,318.33-3,639.18

Finding the Fourth Proportional to 10,214.74, 15,318.33 and 3,639.18

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Solution

The fourth proportional to 10,214.74, 15,318.33 and 3,639.18 is: 5,457.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,214.74 : 15,318.33 = 3,639.18 : x
  2. Step 2: Convert to fraction form
    10,214.74/15,318.33 = 3,639.18/x
  3. Step 3: Cross multiply
    10,214.74x = 15,318.33 × 3,639.18
  4. Step 4: Simplify right side
    10,214.74x = 55,746,160.17
  5. Step 5: Solve for x
    x = 55,746,160.17/10,214.74
  6. Step 6: Final answer
    x = 5,457.42

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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.