Home / 12,153.84-18,223.80-7,226.92

Finding the Fourth Proportional to 12,153.84, 18,223.80 and 7,226.92

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Solution

The fourth proportional to 12,153.84, 18,223.80 and 7,226.92 is: 10,836.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,153.84 : 18,223.80 = 7,226.92 : x
  2. Step 2: Convert to fraction form
    12,153.84/18,223.80 = 7,226.92/x
  3. Step 3: Cross multiply
    12,153.84x = 18,223.80 × 7,226.92
  4. Step 4: Simplify right side
    12,153.84x = 131,701,944.70
  5. Step 5: Solve for x
    x = 131,701,944.70/12,153.84
  6. Step 6: Final answer
    x = 10,836.24

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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.