Home / 12,062.10-18,071.55-7,439.70

Finding the Fourth Proportional to 12,062.10, 18,071.55 and 7,439.70

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Solution

The fourth proportional to 12,062.10, 18,071.55 and 7,439.70 is: 11,146.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,062.10 : 18,071.55 = 7,439.70 : x
  2. Step 2: Convert to fraction form
    12,062.10/18,071.55 = 7,439.70/x
  3. Step 3: Cross multiply
    12,062.10x = 18,071.55 × 7,439.70
  4. Step 4: Simplify right side
    12,062.10x = 134,446,910.54
  5. Step 5: Solve for x
    x = 134,446,910.54/12,062.10
  6. Step 6: Final answer
    x = 11,146.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.