Home / 15,769.32-21,752.04-9,391.68

Finding the Fourth Proportional to 15,769.32, 21,752.04 and 9,391.68

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Solution

The fourth proportional to 15,769.32, 21,752.04 and 9,391.68 is: 12,954.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,769.32 : 21,752.04 = 9,391.68 : x
  2. Step 2: Convert to fraction form
    15,769.32/21,752.04 = 9,391.68/x
  3. Step 3: Cross multiply
    15,769.32x = 21,752.04 × 9,391.68
  4. Step 4: Simplify right side
    15,769.32x = 204,288,199.03
  5. Step 5: Solve for x
    x = 204,288,199.03/15,769.32
  6. Step 6: Final answer
    x = 12,954.79

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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.