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Finding the Fourth Proportional to 8,904.14, 12,287.74 and 6,219.26

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Solution

The fourth proportional to 8,904.14, 12,287.74 and 6,219.26 is: 8,582.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,904.14 : 12,287.74 = 6,219.26 : x
  2. Step 2: Convert to fraction form
    8,904.14/12,287.74 = 6,219.26/x
  3. Step 3: Cross multiply
    8,904.14x = 12,287.74 × 6,219.26
  4. Step 4: Simplify right side
    8,904.14x = 76,420,649.87
  5. Step 5: Solve for x
    x = 76,420,649.87/8,904.14
  6. Step 6: Final answer
    x = 8,582.60

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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.