Home / 15,911.03-21,952.27-9,194.21

Finding the Fourth Proportional to 15,911.03, 21,952.27 and 9,194.21

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Solution

The fourth proportional to 15,911.03, 21,952.27 and 9,194.21 is: 12,685.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,911.03 : 21,952.27 = 9,194.21 : x
  2. Step 2: Convert to fraction form
    15,911.03/21,952.27 = 9,194.21/x
  3. Step 3: Cross multiply
    15,911.03x = 21,952.27 × 9,194.21
  4. Step 4: Simplify right side
    15,911.03x = 201,833,764.41
  5. Step 5: Solve for x
    x = 201,833,764.41/15,911.03
  6. Step 6: Final answer
    x = 12,685.15

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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.