Home / 12,122.74-18,182.08-3,358.54

Finding the Fourth Proportional to 12,122.74, 18,182.08 and 3,358.54

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Solution

The fourth proportional to 12,122.74, 18,182.08 and 3,358.54 is: 5,037.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,122.74 : 18,182.08 = 3,358.54 : x
  2. Step 2: Convert to fraction form
    12,122.74/18,182.08 = 3,358.54/x
  3. Step 3: Cross multiply
    12,122.74x = 18,182.08 × 3,358.54
  4. Step 4: Simplify right side
    12,122.74x = 61,065,242.96
  5. Step 5: Solve for x
    x = 61,065,242.96/12,122.74
  6. Step 6: Final answer
    x = 5,037.25

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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.