Home / 13,152.11-19,728.15-3,291.38

Finding the Fourth Proportional to 13,152.11, 19,728.15 and 3,291.38

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Solution

The fourth proportional to 13,152.11, 19,728.15 and 3,291.38 is: 4,937.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,152.11 : 19,728.15 = 3,291.38 : x
  2. Step 2: Convert to fraction form
    13,152.11/19,728.15 = 3,291.38/x
  3. Step 3: Cross multiply
    13,152.11x = 19,728.15 × 3,291.38
  4. Step 4: Simplify right side
    13,152.11x = 64,932,819.86
  5. Step 5: Solve for x
    x = 64,932,819.86/13,152.11
  6. Step 6: Final answer
    x = 4,937.07

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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.