Home / 15,091.11-20,846.36-12,255.30

Finding the Fourth Proportional to 15,091.11, 20,846.36 and 12,255.30

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Solution

The fourth proportional to 15,091.11, 20,846.36 and 12,255.30 is: 16,929.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,091.11 : 20,846.36 = 12,255.30 : x
  2. Step 2: Convert to fraction form
    15,091.11/20,846.36 = 12,255.30/x
  3. Step 3: Cross multiply
    15,091.11x = 20,846.36 × 12,255.30
  4. Step 4: Simplify right side
    15,091.11x = 255,478,426.35
  5. Step 5: Solve for x
    x = 255,478,426.35/15,091.11
  6. Step 6: Final answer
    x = 16,929.07

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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.