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Finding the Fourth Proportional to 14,444, 21,554.20 and 12,888.80

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Solution

The fourth proportional to 14,444, 21,554.20 and 12,888.80 is: 19,233.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,444 : 21,554.20 = 12,888.80 : x
  2. Step 2: Convert to fraction form
    14,444/21,554.20 = 12,888.80/x
  3. Step 3: Cross multiply
    14,444x = 21,554.20 × 12,888.80
  4. Step 4: Simplify right side
    14,444x = 277,807,772.96
  5. Step 5: Solve for x
    x = 277,807,772.96/14,444
  6. Step 6: Final answer
    x = 19,233.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.