Home / 12,258.34-18,382.98-5,239.11

Finding the Fourth Proportional to 12,258.34, 18,382.98 and 5,239.11

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Solution

The fourth proportional to 12,258.34, 18,382.98 and 5,239.11 is: 7,856.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,258.34 : 18,382.98 = 5,239.11 : x
  2. Step 2: Convert to fraction form
    12,258.34/18,382.98 = 5,239.11/x
  3. Step 3: Cross multiply
    12,258.34x = 18,382.98 × 5,239.11
  4. Step 4: Simplify right side
    12,258.34x = 96,310,542.93
  5. Step 5: Solve for x
    x = 96,310,542.93/12,258.34
  6. Step 6: Final answer
    x = 7,856.74

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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.