Home / 15,107.45-20,846.97-8,392.95

Finding the Fourth Proportional to 15,107.45, 20,846.97 and 8,392.95

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Solution

The fourth proportional to 15,107.45, 20,846.97 and 8,392.95 is: 11,581.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,107.45 : 20,846.97 = 8,392.95 : x
  2. Step 2: Convert to fraction form
    15,107.45/20,846.97 = 8,392.95/x
  3. Step 3: Cross multiply
    15,107.45x = 20,846.97 × 8,392.95
  4. Step 4: Simplify right side
    15,107.45x = 174,967,576.86
  5. Step 5: Solve for x
    x = 174,967,576.86/15,107.45
  6. Step 6: Final answer
    x = 11,581.55

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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.