Home / 15,701.67-21,645.90-11,223.79

Finding the Fourth Proportional to 15,701.67, 21,645.90 and 11,223.79

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Solution

The fourth proportional to 15,701.67, 21,645.90 and 11,223.79 is: 15,472.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,701.67 : 21,645.90 = 11,223.79 : x
  2. Step 2: Convert to fraction form
    15,701.67/21,645.90 = 11,223.79/x
  3. Step 3: Cross multiply
    15,701.67x = 21,645.90 × 11,223.79
  4. Step 4: Simplify right side
    15,701.67x = 242,948,981.85
  5. Step 5: Solve for x
    x = 242,948,981.85/15,701.67
  6. Step 6: Final answer
    x = 15,472.81

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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.