Home / 15,091.84-20,814.15-11,323.36

Finding the Fourth Proportional to 15,091.84, 20,814.15 and 11,323.36

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Solution

The fourth proportional to 15,091.84, 20,814.15 and 11,323.36 is: 15,616.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,091.84 : 20,814.15 = 11,323.36 : x
  2. Step 2: Convert to fraction form
    15,091.84/20,814.15 = 11,323.36/x
  3. Step 3: Cross multiply
    15,091.84x = 20,814.15 × 11,323.36
  4. Step 4: Simplify right side
    15,091.84x = 235,686,113.54
  5. Step 5: Solve for x
    x = 235,686,113.54/15,091.84
  6. Step 6: Final answer
    x = 15,616.79

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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.