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Finding the Fourth Proportional to 8,884.86, 12,258.92 and 5,434.58

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Solution

The fourth proportional to 8,884.86, 12,258.92 and 5,434.58 is: 7,498.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,884.86 : 12,258.92 = 5,434.58 : x
  2. Step 2: Convert to fraction form
    8,884.86/12,258.92 = 5,434.58/x
  3. Step 3: Cross multiply
    8,884.86x = 12,258.92 × 5,434.58
  4. Step 4: Simplify right side
    8,884.86x = 66,621,992.99
  5. Step 5: Solve for x
    x = 66,621,992.99/8,884.86
  6. Step 6: Final answer
    x = 7,498.37

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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.