Home / 13,258.41-18,293.85-7,882.76

Finding the Fourth Proportional to 13,258.41, 18,293.85 and 7,882.76

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Solution

The fourth proportional to 13,258.41, 18,293.85 and 7,882.76 is: 10,876.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,258.41 : 18,293.85 = 7,882.76 : x
  2. Step 2: Convert to fraction form
    13,258.41/18,293.85 = 7,882.76/x
  3. Step 3: Cross multiply
    13,258.41x = 18,293.85 × 7,882.76
  4. Step 4: Simplify right side
    13,258.41x = 144,205,937.56
  5. Step 5: Solve for x
    x = 144,205,937.56/13,258.41
  6. Step 6: Final answer
    x = 10,876.56

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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.