Home / 7,672.73-11,509.16-5,319.81

Finding the Fourth Proportional to 7,672.73, 11,509.16 and 5,319.81

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Solution

The fourth proportional to 7,672.73, 11,509.16 and 5,319.81 is: 7,979.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,672.73 : 11,509.16 = 5,319.81 : x
  2. Step 2: Convert to fraction form
    7,672.73/11,509.16 = 5,319.81/x
  3. Step 3: Cross multiply
    7,672.73x = 11,509.16 × 5,319.81
  4. Step 4: Simplify right side
    7,672.73x = 61,226,517.86
  5. Step 5: Solve for x
    x = 61,226,517.86/7,672.73
  6. Step 6: Final answer
    x = 7,979.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.