Home / 8,927.20-13,388.40-2,687.20

Finding the Fourth Proportional to 8,927.20, 13,388.40 and 2,687.20

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Solution

The fourth proportional to 8,927.20, 13,388.40 and 2,687.20 is: 4,030.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,927.20 : 13,388.40 = 2,687.20 : x
  2. Step 2: Convert to fraction form
    8,927.20/13,388.40 = 2,687.20/x
  3. Step 3: Cross multiply
    8,927.20x = 13,388.40 × 2,687.20
  4. Step 4: Simplify right side
    8,927.20x = 35,977,308.48
  5. Step 5: Solve for x
    x = 35,977,308.48/8,927.20
  6. Step 6: Final answer
    x = 4,030.08

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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.