Home / 9,383.28-12,947.84-5,191.28

Finding the Fourth Proportional to 9,383.28, 12,947.84 and 5,191.28

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Solution

The fourth proportional to 9,383.28, 12,947.84 and 5,191.28 is: 7,163.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,383.28 : 12,947.84 = 5,191.28 : x
  2. Step 2: Convert to fraction form
    9,383.28/12,947.84 = 5,191.28/x
  3. Step 3: Cross multiply
    9,383.28x = 12,947.84 × 5,191.28
  4. Step 4: Simplify right side
    9,383.28x = 67,215,862.84
  5. Step 5: Solve for x
    x = 67,215,862.84/9,383.28
  6. Step 6: Final answer
    x = 7,163.37

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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.