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Finding the Fourth Proportional to 8,954.22, 12,362.85 and 8,007.06

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Solution

The fourth proportional to 8,954.22, 12,362.85 and 8,007.06 is: 11,055.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,954.22 : 12,362.85 = 8,007.06 : x
  2. Step 2: Convert to fraction form
    8,954.22/12,362.85 = 8,007.06/x
  3. Step 3: Cross multiply
    8,954.22x = 12,362.85 × 8,007.06
  4. Step 4: Simplify right side
    8,954.22x = 98,990,081.72
  5. Step 5: Solve for x
    x = 98,990,081.72/8,954.22
  6. Step 6: Final answer
    x = 11,055.13

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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.