Home / 12,353.62-18,520.04-10,007.81

Finding the Fourth Proportional to 12,353.62, 18,520.04 and 10,007.81

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Solution

The fourth proportional to 12,353.62, 18,520.04 and 10,007.81 is: 15,003.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,353.62 : 18,520.04 = 10,007.81 : x
  2. Step 2: Convert to fraction form
    12,353.62/18,520.04 = 10,007.81/x
  3. Step 3: Cross multiply
    12,353.62x = 18,520.04 × 10,007.81
  4. Step 4: Simplify right side
    12,353.62x = 185,344,923.89
  5. Step 5: Solve for x
    x = 185,344,923.89/12,353.62
  6. Step 6: Final answer
    x = 15,003.29

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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.