Home / 11,023.65-15,204.30-7,664.78

Finding the Fourth Proportional to 11,023.65, 15,204.30 and 7,664.78

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Solution

The fourth proportional to 11,023.65, 15,204.30 and 7,664.78 is: 10,571.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,023.65 : 15,204.30 = 7,664.78 : x
  2. Step 2: Convert to fraction form
    11,023.65/15,204.30 = 7,664.78/x
  3. Step 3: Cross multiply
    11,023.65x = 15,204.30 × 7,664.78
  4. Step 4: Simplify right side
    11,023.65x = 116,537,500.21
  5. Step 5: Solve for x
    x = 116,537,500.21/11,023.65
  6. Step 6: Final answer
    x = 10,571.59

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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.