Home / 13,133.60-18,108.24-8,156.96

Finding the Fourth Proportional to 13,133.60, 18,108.24 and 8,156.96

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Solution

The fourth proportional to 13,133.60, 18,108.24 and 8,156.96 is: 11,246.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,133.60 : 18,108.24 = 8,156.96 : x
  2. Step 2: Convert to fraction form
    13,133.60/18,108.24 = 8,156.96/x
  3. Step 3: Cross multiply
    13,133.60x = 18,108.24 × 8,156.96
  4. Step 4: Simplify right side
    13,133.60x = 147,708,189.35
  5. Step 5: Solve for x
    x = 147,708,189.35/13,133.60
  6. Step 6: Final answer
    x = 11,246.59

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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.