Home / 11,432.10-15,777.03-6,396.90

Finding the Fourth Proportional to 11,432.10, 15,777.03 and 6,396.90

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Solution

The fourth proportional to 11,432.10, 15,777.03 and 6,396.90 is: 8,828.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,432.10 : 15,777.03 = 6,396.90 : x
  2. Step 2: Convert to fraction form
    11,432.10/15,777.03 = 6,396.90/x
  3. Step 3: Cross multiply
    11,432.10x = 15,777.03 × 6,396.90
  4. Step 4: Simplify right side
    11,432.10x = 100,924,083.21
  5. Step 5: Solve for x
    x = 100,924,083.21/11,432.10
  6. Step 6: Final answer
    x = 8,828.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.