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Finding the Fourth Proportional to 8,894.11, 13,330.23 and 4,990.32

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Solution

The fourth proportional to 8,894.11, 13,330.23 and 4,990.32 is: 7,479.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,894.11 : 13,330.23 = 4,990.32 : x
  2. Step 2: Convert to fraction form
    8,894.11/13,330.23 = 4,990.32/x
  3. Step 3: Cross multiply
    8,894.11x = 13,330.23 × 4,990.32
  4. Step 4: Simplify right side
    8,894.11x = 66,522,098.76
  5. Step 5: Solve for x
    x = 66,522,098.76/8,894.11
  6. Step 6: Final answer
    x = 7,479.34

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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.