Home / 10,981.60-16,470.60-3,084.64

Finding the Fourth Proportional to 10,981.60, 16,470.60 and 3,084.64

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Solution

The fourth proportional to 10,981.60, 16,470.60 and 3,084.64 is: 4,626.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,981.60 : 16,470.60 = 3,084.64 : x
  2. Step 2: Convert to fraction form
    10,981.60/16,470.60 = 3,084.64/x
  3. Step 3: Cross multiply
    10,981.60x = 16,470.60 × 3,084.64
  4. Step 4: Simplify right side
    10,981.60x = 50,805,871.58
  5. Step 5: Solve for x
    x = 50,805,871.58/10,981.60
  6. Step 6: Final answer
    x = 4,626.45

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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.