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Finding the Fourth Proportional to 16,422.04, 22,662.48 and 8,970.04

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Solution

The fourth proportional to 16,422.04, 22,662.48 and 8,970.04 is: 12,378.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,422.04 : 22,662.48 = 8,970.04 : x
  2. Step 2: Convert to fraction form
    16,422.04/22,662.48 = 8,970.04/x
  3. Step 3: Cross multiply
    16,422.04x = 22,662.48 × 8,970.04
  4. Step 4: Simplify right side
    16,422.04x = 203,283,352.10
  5. Step 5: Solve for x
    x = 203,283,352.10/16,422.04
  6. Step 6: Final answer
    x = 12,378.69

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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.