Home / 15,450.76-21,322.21-9,077.61

Finding the Fourth Proportional to 15,450.76, 21,322.21 and 9,077.61

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Solution

The fourth proportional to 15,450.76, 21,322.21 and 9,077.61 is: 12,527.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,450.76 : 21,322.21 = 9,077.61 : x
  2. Step 2: Convert to fraction form
    15,450.76/21,322.21 = 9,077.61/x
  3. Step 3: Cross multiply
    15,450.76x = 21,322.21 × 9,077.61
  4. Step 4: Simplify right side
    15,450.76x = 193,554,661.33
  5. Step 5: Solve for x
    x = 193,554,661.33/15,450.76
  6. Step 6: Final answer
    x = 12,527.20

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Double scale
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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.