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Finding the Fourth Proportional to 15,363.17, 21,203.20 and 8,650.11

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Solution

The fourth proportional to 15,363.17, 21,203.20 and 8,650.11 is: 11,938.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,363.17 : 21,203.20 = 8,650.11 : x
  2. Step 2: Convert to fraction form
    15,363.17/21,203.20 = 8,650.11/x
  3. Step 3: Cross multiply
    15,363.17x = 21,203.20 × 8,650.11
  4. Step 4: Simplify right side
    15,363.17x = 183,410,012.35
  5. Step 5: Solve for x
    x = 183,410,012.35/15,363.17
  6. Step 6: Final answer
    x = 11,938.29

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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.