Home / 13,077.66-18,043.11-7,487.58

Finding the Fourth Proportional to 13,077.66, 18,043.11 and 7,487.58

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Solution

The fourth proportional to 13,077.66, 18,043.11 and 7,487.58 is: 10,330.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,077.66 : 18,043.11 = 7,487.58 : x
  2. Step 2: Convert to fraction form
    13,077.66/18,043.11 = 7,487.58/x
  3. Step 3: Cross multiply
    13,077.66x = 18,043.11 × 7,487.58
  4. Step 4: Simplify right side
    13,077.66x = 135,099,229.57
  5. Step 5: Solve for x
    x = 135,099,229.57/13,077.66
  6. Step 6: Final answer
    x = 10,330.54

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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.