Home / 10,443.60-15,664.98-3,424.14

Finding the Fourth Proportional to 10,443.60, 15,664.98 and 3,424.14

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Solution

The fourth proportional to 10,443.60, 15,664.98 and 3,424.14 is: 5,136.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,443.60 : 15,664.98 = 3,424.14 : x
  2. Step 2: Convert to fraction form
    10,443.60/15,664.98 = 3,424.14/x
  3. Step 3: Cross multiply
    10,443.60x = 15,664.98 × 3,424.14
  4. Step 4: Simplify right side
    10,443.60x = 53,639,084.62
  5. Step 5: Solve for x
    x = 53,639,084.62/10,443.60
  6. Step 6: Final answer
    x = 5,136.07

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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.