Home / 8,258.28-12,389.57-2,712.48

Finding the Fourth Proportional to 8,258.28, 12,389.57 and 2,712.48

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Solution

The fourth proportional to 8,258.28, 12,389.57 and 2,712.48 is: 4,069.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,258.28 : 12,389.57 = 2,712.48 : x
  2. Step 2: Convert to fraction form
    8,258.28/12,389.57 = 2,712.48/x
  3. Step 3: Cross multiply
    8,258.28x = 12,389.57 × 2,712.48
  4. Step 4: Simplify right side
    8,258.28x = 33,606,460.83
  5. Step 5: Solve for x
    x = 33,606,460.83/8,258.28
  6. Step 6: Final answer
    x = 4,069.43

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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.