Home / 12,258.64-18,380.05-5,243.23

Finding the Fourth Proportional to 12,258.64, 18,380.05 and 5,243.23

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Solution

The fourth proportional to 12,258.64, 18,380.05 and 5,243.23 is: 7,861.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,258.64 : 18,380.05 = 5,243.23 : x
  2. Step 2: Convert to fraction form
    12,258.64/18,380.05 = 5,243.23/x
  3. Step 3: Cross multiply
    12,258.64x = 18,380.05 × 5,243.23
  4. Step 4: Simplify right side
    12,258.64x = 96,370,839.43
  5. Step 5: Solve for x
    x = 96,370,839.43/12,258.64
  6. Step 6: Final answer
    x = 7,861.46

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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.