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Finding the Fourth Proportional to 8,990.92, 12,407.07 and 6,006.34

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Solution

The fourth proportional to 8,990.92, 12,407.07 and 6,006.34 is: 8,288.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,990.92 : 12,407.07 = 6,006.34 : x
  2. Step 2: Convert to fraction form
    8,990.92/12,407.07 = 6,006.34/x
  3. Step 3: Cross multiply
    8,990.92x = 12,407.07 × 6,006.34
  4. Step 4: Simplify right side
    8,990.92x = 74,521,080.82
  5. Step 5: Solve for x
    x = 74,521,080.82/8,990.92
  6. Step 6: Final answer
    x = 8,288.48

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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.