Home / 7,763.66-11,645.58-3,320.72

Finding the Fourth Proportional to 7,763.66, 11,645.58 and 3,320.72

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Solution

The fourth proportional to 7,763.66, 11,645.58 and 3,320.72 is: 4,981.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,763.66 : 11,645.58 = 3,320.72 : x
  2. Step 2: Convert to fraction form
    7,763.66/11,645.58 = 3,320.72/x
  3. Step 3: Cross multiply
    7,763.66x = 11,645.58 × 3,320.72
  4. Step 4: Simplify right side
    7,763.66x = 38,671,710.42
  5. Step 5: Solve for x
    x = 38,671,710.42/7,763.66
  6. Step 6: Final answer
    x = 4,981.12

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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.