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Finding the Fourth Proportional to 15,223.80, 22,820.13 and 8,636.07

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Solution

The fourth proportional to 15,223.80, 22,820.13 and 8,636.07 is: 12,945.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,223.80 : 22,820.13 = 8,636.07 : x
  2. Step 2: Convert to fraction form
    15,223.80/22,820.13 = 8,636.07/x
  3. Step 3: Cross multiply
    15,223.80x = 22,820.13 × 8,636.07
  4. Step 4: Simplify right side
    15,223.80x = 197,076,197.30
  5. Step 5: Solve for x
    x = 197,076,197.30/15,223.80
  6. Step 6: Final answer
    x = 12,945.27

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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.