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Finding the Fourth Proportional to 15,220.98, 22,821.08 and 5,223.06

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Solution

The fourth proportional to 15,220.98, 22,821.08 and 5,223.06 is: 7,831.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,220.98 : 22,821.08 = 5,223.06 : x
  2. Step 2: Convert to fraction form
    15,220.98/22,821.08 = 5,223.06/x
  3. Step 3: Cross multiply
    15,220.98x = 22,821.08 × 5,223.06
  4. Step 4: Simplify right side
    15,220.98x = 119,195,843.99
  5. Step 5: Solve for x
    x = 119,195,843.99/15,220.98
  6. Step 6: Final answer
    x = 7,831.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.