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Finding the Fourth Proportional to 8,900.92, 12,284.76 and 5,364.46

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Solution

The fourth proportional to 8,900.92, 12,284.76 and 5,364.46 is: 7,403.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,900.92 : 12,284.76 = 5,364.46 : x
  2. Step 2: Convert to fraction form
    8,900.92/12,284.76 = 5,364.46/x
  3. Step 3: Cross multiply
    8,900.92x = 12,284.76 × 5,364.46
  4. Step 4: Simplify right side
    8,900.92x = 65,901,103.63
  5. Step 5: Solve for x
    x = 65,901,103.63/8,900.92
  6. Step 6: Final answer
    x = 7,403.85

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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.