Home / 14,288.70-21,436.12-7,269.70

Finding the Fourth Proportional to 14,288.70, 21,436.12 and 7,269.70

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Solution

The fourth proportional to 14,288.70, 21,436.12 and 7,269.70 is: 10,906.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,288.70 : 21,436.12 = 7,269.70 : x
  2. Step 2: Convert to fraction form
    14,288.70/21,436.12 = 7,269.70/x
  3. Step 3: Cross multiply
    14,288.70x = 21,436.12 × 7,269.70
  4. Step 4: Simplify right side
    14,288.70x = 155,834,161.56
  5. Step 5: Solve for x
    x = 155,834,161.56/14,288.70
  6. Step 6: Final answer
    x = 10,906.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.