Home / 15,732.35-21,708.16-9,016.69

Finding the Fourth Proportional to 15,732.35, 21,708.16 and 9,016.69

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Solution

The fourth proportional to 15,732.35, 21,708.16 and 9,016.69 is: 12,441.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,732.35 : 21,708.16 = 9,016.69 : x
  2. Step 2: Convert to fraction form
    15,732.35/21,708.16 = 9,016.69/x
  3. Step 3: Cross multiply
    15,732.35x = 21,708.16 × 9,016.69
  4. Step 4: Simplify right side
    15,732.35x = 195,735,749.19
  5. Step 5: Solve for x
    x = 195,735,749.19/15,732.35
  6. Step 6: Final answer
    x = 12,441.61

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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.