Home / 15,222.15-21,006.09-8,849.25

Finding the Fourth Proportional to 15,222.15, 21,006.09 and 8,849.25

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Solution

The fourth proportional to 15,222.15, 21,006.09 and 8,849.25 is: 12,211.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,222.15 : 21,006.09 = 8,849.25 : x
  2. Step 2: Convert to fraction form
    15,222.15/21,006.09 = 8,849.25/x
  3. Step 3: Cross multiply
    15,222.15x = 21,006.09 × 8,849.25
  4. Step 4: Simplify right side
    15,222.15x = 185,888,141.93
  5. Step 5: Solve for x
    x = 185,888,141.93/15,222.15
  6. Step 6: Final answer
    x = 12,211.69

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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.