Home / 7,819.65-11,700.32-7,732.17

Finding the Fourth Proportional to 7,819.65, 11,700.32 and 7,732.17

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Solution

The fourth proportional to 7,819.65, 11,700.32 and 7,732.17 is: 11,569.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,819.65 : 11,700.32 = 7,732.17 : x
  2. Step 2: Convert to fraction form
    7,819.65/11,700.32 = 7,732.17/x
  3. Step 3: Cross multiply
    7,819.65x = 11,700.32 × 7,732.17
  4. Step 4: Simplify right side
    7,819.65x = 90,468,824.63
  5. Step 5: Solve for x
    x = 90,468,824.63/7,819.65
  6. Step 6: Final answer
    x = 11,569.42

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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.