Home / 10,638.95-15,959.13-3,243.44

Finding the Fourth Proportional to 10,638.95, 15,959.13 and 3,243.44

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Solution

The fourth proportional to 10,638.95, 15,959.13 and 3,243.44 is: 4,865.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,638.95 : 15,959.13 = 3,243.44 : x
  2. Step 2: Convert to fraction form
    10,638.95/15,959.13 = 3,243.44/x
  3. Step 3: Cross multiply
    10,638.95x = 15,959.13 × 3,243.44
  4. Step 4: Simplify right side
    10,638.95x = 51,762,508.34
  5. Step 5: Solve for x
    x = 51,762,508.34/10,638.95
  6. Step 6: Final answer
    x = 4,865.38

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1.5x scale

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.