Home / 12,238.28-16,919.70-9,046.54

Finding the Fourth Proportional to 12,238.28, 16,919.70 and 9,046.54

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Solution

The fourth proportional to 12,238.28, 16,919.70 and 9,046.54 is: 12,507.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,238.28 : 16,919.70 = 9,046.54 : x
  2. Step 2: Convert to fraction form
    12,238.28/16,919.70 = 9,046.54/x
  3. Step 3: Cross multiply
    12,238.28x = 16,919.70 × 9,046.54
  4. Step 4: Simplify right side
    12,238.28x = 153,064,742.84
  5. Step 5: Solve for x
    x = 153,064,742.84/12,238.28
  6. Step 6: Final answer
    x = 12,507.05

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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.