Home / 11,145.20-16,718.20-3,354.01

Finding the Fourth Proportional to 11,145.20, 16,718.20 and 3,354.01

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Solution

The fourth proportional to 11,145.20, 16,718.20 and 3,354.01 is: 5,031.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,145.20 : 16,718.20 = 3,354.01 : x
  2. Step 2: Convert to fraction form
    11,145.20/16,718.20 = 3,354.01/x
  3. Step 3: Cross multiply
    11,145.20x = 16,718.20 × 3,354.01
  4. Step 4: Simplify right side
    11,145.20x = 56,072,959.80
  5. Step 5: Solve for x
    x = 56,072,959.80/11,145.20
  6. Step 6: Final answer
    x = 5,031.13

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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.