Home / 13,369.28-18,438.42-10,019.96

Finding the Fourth Proportional to 13,369.28, 18,438.42 and 10,019.96

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Solution

The fourth proportional to 13,369.28, 18,438.42 and 10,019.96 is: 13,819.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,369.28 : 18,438.42 = 10,019.96 : x
  2. Step 2: Convert to fraction form
    13,369.28/18,438.42 = 10,019.96/x
  3. Step 3: Cross multiply
    13,369.28x = 18,438.42 × 10,019.96
  4. Step 4: Simplify right side
    13,369.28x = 184,752,230.86
  5. Step 5: Solve for x
    x = 184,752,230.86/13,369.28
  6. Step 6: Final answer
    x = 13,819.16

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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.