Home / 9,145.28-13,721.89-3,226.40

Finding the Fourth Proportional to 9,145.28, 13,721.89 and 3,226.40

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Solution

The fourth proportional to 9,145.28, 13,721.89 and 3,226.40 is: 4,841.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,145.28 : 13,721.89 = 3,226.40 : x
  2. Step 2: Convert to fraction form
    9,145.28/13,721.89 = 3,226.40/x
  3. Step 3: Cross multiply
    9,145.28x = 13,721.89 × 3,226.40
  4. Step 4: Simplify right side
    9,145.28x = 44,272,354.84
  5. Step 5: Solve for x
    x = 44,272,354.84/9,145.28
  6. Step 6: Final answer
    x = 4,841.00

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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.