Home / 10,845.20-16,267.80-2,637.20

Finding the Fourth Proportional to 10,845.20, 16,267.80 and 2,637.20

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Solution

The fourth proportional to 10,845.20, 16,267.80 and 2,637.20 is: 3,955.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,845.20 : 16,267.80 = 2,637.20 : x
  2. Step 2: Convert to fraction form
    10,845.20/16,267.80 = 2,637.20/x
  3. Step 3: Cross multiply
    10,845.20x = 16,267.80 × 2,637.20
  4. Step 4: Simplify right side
    10,845.20x = 42,901,442.16
  5. Step 5: Solve for x
    x = 42,901,442.16/10,845.20
  6. Step 6: Final answer
    x = 3,955.80

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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.