Home / 9,327.40-13,919.19-7,687.15

Finding the Fourth Proportional to 9,327.40, 13,919.19 and 7,687.15

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Solution

The fourth proportional to 9,327.40, 13,919.19 and 7,687.15 is: 11,471.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,327.40 : 13,919.19 = 7,687.15 : x
  2. Step 2: Convert to fraction form
    9,327.40/13,919.19 = 7,687.15/x
  3. Step 3: Cross multiply
    9,327.40x = 13,919.19 × 7,687.15
  4. Step 4: Simplify right side
    9,327.40x = 106,998,959.32
  5. Step 5: Solve for x
    x = 106,998,959.32/9,327.40
  6. Step 6: Final answer
    x = 11,471.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.