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Finding the Fourth Proportional to 9,994.92, 14,972.76 and 8,608.20

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Solution

The fourth proportional to 9,994.92, 14,972.76 and 8,608.20 is: 12,895.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,994.92 : 14,972.76 = 8,608.20 : x
  2. Step 2: Convert to fraction form
    9,994.92/14,972.76 = 8,608.20/x
  3. Step 3: Cross multiply
    9,994.92x = 14,972.76 × 8,608.20
  4. Step 4: Simplify right side
    9,994.92x = 128,888,512.63
  5. Step 5: Solve for x
    x = 128,888,512.63/9,994.92
  6. Step 6: Final answer
    x = 12,895.40

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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.