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Finding the Fourth Proportional to 14,397.75, 19,869.10 and 8,808.75

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Solution

The fourth proportional to 14,397.75, 19,869.10 and 8,808.75 is: 12,156.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,397.75 : 19,869.10 = 8,808.75 : x
  2. Step 2: Convert to fraction form
    14,397.75/19,869.10 = 8,808.75/x
  3. Step 3: Cross multiply
    14,397.75x = 19,869.10 × 8,808.75
  4. Step 4: Simplify right side
    14,397.75x = 175,021,912.60
  5. Step 5: Solve for x
    x = 175,021,912.60/14,397.75
  6. Step 6: Final answer
    x = 12,156.20

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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.