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Finding the Fourth Proportional to 14,816.90, 20,447.58 and 8,849.10

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Solution

The fourth proportional to 14,816.90, 20,447.58 and 8,849.10 is: 12,211.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,816.90 : 20,447.58 = 8,849.10 : x
  2. Step 2: Convert to fraction form
    14,816.90/20,447.58 = 8,849.10/x
  3. Step 3: Cross multiply
    14,816.90x = 20,447.58 × 8,849.10
  4. Step 4: Simplify right side
    14,816.90x = 180,942,680.18
  5. Step 5: Solve for x
    x = 180,942,680.18/14,816.90
  6. Step 6: Final answer
    x = 12,211.91

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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.