Home / 15,290.43-21,091.08-11,047.73

Finding the Fourth Proportional to 15,290.43, 21,091.08 and 11,047.73

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Solution

The fourth proportional to 15,290.43, 21,091.08 and 11,047.73 is: 15,238.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,290.43 : 21,091.08 = 11,047.73 : x
  2. Step 2: Convert to fraction form
    15,290.43/21,091.08 = 11,047.73/x
  3. Step 3: Cross multiply
    15,290.43x = 21,091.08 × 11,047.73
  4. Step 4: Simplify right side
    15,290.43x = 233,008,557.25
  5. Step 5: Solve for x
    x = 233,008,557.25/15,290.43
  6. Step 6: Final answer
    x = 15,238.85

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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.