Home / 10,972.40-16,458.60-2,764.40

Finding the Fourth Proportional to 10,972.40, 16,458.60 and 2,764.40

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Solution

The fourth proportional to 10,972.40, 16,458.60 and 2,764.40 is: 4,146.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,972.40 : 16,458.60 = 2,764.40 : x
  2. Step 2: Convert to fraction form
    10,972.40/16,458.60 = 2,764.40/x
  3. Step 3: Cross multiply
    10,972.40x = 16,458.60 × 2,764.40
  4. Step 4: Simplify right side
    10,972.40x = 45,498,153.84
  5. Step 5: Solve for x
    x = 45,498,153.84/10,972.40
  6. Step 6: Final answer
    x = 4,146.60

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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.