Home / 12,851.20-19,281.60-5,065.44

Finding the Fourth Proportional to 12,851.20, 19,281.60 and 5,065.44

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Solution

The fourth proportional to 12,851.20, 19,281.60 and 5,065.44 is: 7,600.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,851.20 : 19,281.60 = 5,065.44 : x
  2. Step 2: Convert to fraction form
    12,851.20/19,281.60 = 5,065.44/x
  3. Step 3: Cross multiply
    12,851.20x = 19,281.60 × 5,065.44
  4. Step 4: Simplify right side
    12,851.20x = 97,669,787.90
  5. Step 5: Solve for x
    x = 97,669,787.90/12,851.20
  6. Step 6: Final answer
    x = 7,600.05

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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.