Home / 15,523.65-21,422.34-8,450.06

Finding the Fourth Proportional to 15,523.65, 21,422.34 and 8,450.06

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Solution

The fourth proportional to 15,523.65, 21,422.34 and 8,450.06 is: 11,660.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,523.65 : 21,422.34 = 8,450.06 : x
  2. Step 2: Convert to fraction form
    15,523.65/21,422.34 = 8,450.06/x
  3. Step 3: Cross multiply
    15,523.65x = 21,422.34 × 8,450.06
  4. Step 4: Simplify right side
    15,523.65x = 181,019,951.23
  5. Step 5: Solve for x
    x = 181,019,951.23/15,523.65
  6. Step 6: Final answer
    x = 11,660.91

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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.