Home / 10,144.28-13,997.40-5,667.86

Finding the Fourth Proportional to 10,144.28, 13,997.40 and 5,667.86

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Solution

The fourth proportional to 10,144.28, 13,997.40 and 5,667.86 is: 7,820.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,144.28 : 13,997.40 = 5,667.86 : x
  2. Step 2: Convert to fraction form
    10,144.28/13,997.40 = 5,667.86/x
  3. Step 3: Cross multiply
    10,144.28x = 13,997.40 × 5,667.86
  4. Step 4: Simplify right side
    10,144.28x = 79,335,303.56
  5. Step 5: Solve for x
    x = 79,335,303.56/10,144.28
  6. Step 6: Final answer
    x = 7,820.69

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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.