Home / 12,133.13-16,749.18-8,994.78

Finding the Fourth Proportional to 12,133.13, 16,749.18 and 8,994.78

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Solution

The fourth proportional to 12,133.13, 16,749.18 and 8,994.78 is: 12,416.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,133.13 : 16,749.18 = 8,994.78 : x
  2. Step 2: Convert to fraction form
    12,133.13/16,749.18 = 8,994.78/x
  3. Step 3: Cross multiply
    12,133.13x = 16,749.18 × 8,994.78
  4. Step 4: Simplify right side
    12,133.13x = 150,655,189.28
  5. Step 5: Solve for x
    x = 150,655,189.28/12,133.13
  6. Step 6: Final answer
    x = 12,416.85

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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.