Home / 9,119.58-12,579.48-5,759.70

Finding the Fourth Proportional to 9,119.58, 12,579.48 and 5,759.70

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Solution

The fourth proportional to 9,119.58, 12,579.48 and 5,759.70 is: 7,944.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,119.58 : 12,579.48 = 5,759.70 : x
  2. Step 2: Convert to fraction form
    9,119.58/12,579.48 = 5,759.70/x
  3. Step 3: Cross multiply
    9,119.58x = 12,579.48 × 5,759.70
  4. Step 4: Simplify right side
    9,119.58x = 72,454,030.96
  5. Step 5: Solve for x
    x = 72,454,030.96/9,119.58
  6. Step 6: Final answer
    x = 7,944.89

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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.