Home / 15,314.43-21,133.26-8,941.38

Finding the Fourth Proportional to 15,314.43, 21,133.26 and 8,941.38

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Solution

The fourth proportional to 15,314.43, 21,133.26 and 8,941.38 is: 12,338.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,314.43 : 21,133.26 = 8,941.38 : x
  2. Step 2: Convert to fraction form
    15,314.43/21,133.26 = 8,941.38/x
  3. Step 3: Cross multiply
    15,314.43x = 21,133.26 × 8,941.38
  4. Step 4: Simplify right side
    15,314.43x = 188,960,515.41
  5. Step 5: Solve for x
    x = 188,960,515.41/15,314.43
  6. Step 6: Final answer
    x = 12,338.72

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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.