Home / 15,220.06-21,004.23-8,934.46

Finding the Fourth Proportional to 15,220.06, 21,004.23 and 8,934.46

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Solution

The fourth proportional to 15,220.06, 21,004.23 and 8,934.46 is: 12,329.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,220.06 : 21,004.23 = 8,934.46 : x
  2. Step 2: Convert to fraction form
    15,220.06/21,004.23 = 8,934.46/x
  3. Step 3: Cross multiply
    15,220.06x = 21,004.23 × 8,934.46
  4. Step 4: Simplify right side
    15,220.06x = 187,661,452.77
  5. Step 5: Solve for x
    x = 187,661,452.77/15,220.06
  6. Step 6: Final answer
    x = 12,329.88

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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.