Home / 12,200.79-16,826.22-9,512.67

Finding the Fourth Proportional to 12,200.79, 16,826.22 and 9,512.67

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Solution

The fourth proportional to 12,200.79, 16,826.22 and 9,512.67 is: 13,119.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,200.79 : 16,826.22 = 9,512.67 : x
  2. Step 2: Convert to fraction form
    12,200.79/16,826.22 = 9,512.67/x
  3. Step 3: Cross multiply
    12,200.79x = 16,826.22 × 9,512.67
  4. Step 4: Simplify right side
    12,200.79x = 160,062,278.21
  5. Step 5: Solve for x
    x = 160,062,278.21/12,200.79
  6. Step 6: Final answer
    x = 13,119.01

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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.