Home / 12,768.11-19,152.18-4,003.71

Finding the Fourth Proportional to 12,768.11, 19,152.18 and 4,003.71

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Solution

The fourth proportional to 12,768.11, 19,152.18 and 4,003.71 is: 6,005.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,768.11 : 19,152.18 = 4,003.71 : x
  2. Step 2: Convert to fraction form
    12,768.11/19,152.18 = 4,003.71/x
  3. Step 3: Cross multiply
    12,768.11x = 19,152.18 × 4,003.71
  4. Step 4: Simplify right side
    12,768.11x = 76,679,754.57
  5. Step 5: Solve for x
    x = 76,679,754.57/12,768.11
  6. Step 6: Final answer
    x = 6,005.57

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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.