Home / 7,717.72-11,567.47-3,329.75

Finding the Fourth Proportional to 7,717.72, 11,567.47 and 3,329.75

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Solution

The fourth proportional to 7,717.72, 11,567.47 and 3,329.75 is: 4,990.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,717.72 : 11,567.47 = 3,329.75 : x
  2. Step 2: Convert to fraction form
    7,717.72/11,567.47 = 3,329.75/x
  3. Step 3: Cross multiply
    7,717.72x = 11,567.47 × 3,329.75
  4. Step 4: Simplify right side
    7,717.72x = 38,516,783.23
  5. Step 5: Solve for x
    x = 38,516,783.23/7,717.72
  6. Step 6: Final answer
    x = 4,990.69

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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.