Home / 18,307.30-27,476.55-7,221.77

Finding the Fourth Proportional to 18,307.30, 27,476.55 and 7,221.77

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Solution

The fourth proportional to 18,307.30, 27,476.55 and 7,221.77 is: 10,838.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,307.30 : 27,476.55 = 7,221.77 : x
  2. Step 2: Convert to fraction form
    18,307.30/27,476.55 = 7,221.77/x
  3. Step 3: Cross multiply
    18,307.30x = 27,476.55 × 7,221.77
  4. Step 4: Simplify right side
    18,307.30x = 198,429,324.49
  5. Step 5: Solve for x
    x = 198,429,324.49/18,307.30
  6. Step 6: Final answer
    x = 10,838.81

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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.