Home / 9,439.96-13,027.28-5,191.20

Finding the Fourth Proportional to 9,439.96, 13,027.28 and 5,191.20

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Solution

The fourth proportional to 9,439.96, 13,027.28 and 5,191.20 is: 7,163.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,439.96 : 13,027.28 = 5,191.20 : x
  2. Step 2: Convert to fraction form
    9,439.96/13,027.28 = 5,191.20/x
  3. Step 3: Cross multiply
    9,439.96x = 13,027.28 × 5,191.20
  4. Step 4: Simplify right side
    9,439.96x = 67,627,215.94
  5. Step 5: Solve for x
    x = 67,627,215.94/9,439.96
  6. Step 6: Final answer
    x = 7,163.93

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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.