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Finding the Fourth Proportional to 14,249.70, 19,660.23 and 8,280.23

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Solution

The fourth proportional to 14,249.70, 19,660.23 and 8,280.23 is: 11,424.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,249.70 : 19,660.23 = 8,280.23 : x
  2. Step 2: Convert to fraction form
    14,249.70/19,660.23 = 8,280.23/x
  3. Step 3: Cross multiply
    14,249.70x = 19,660.23 × 8,280.23
  4. Step 4: Simplify right side
    14,249.70x = 162,791,127.95
  5. Step 5: Solve for x
    x = 162,791,127.95/14,249.70
  6. Step 6: Final answer
    x = 11,424.18

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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.