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Finding the Fourth Proportional to 8,994.89, 12,417 and 6,600.63

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Solution

The fourth proportional to 8,994.89, 12,417 and 6,600.63 is: 9,111.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,994.89 : 12,417 = 6,600.63 : x
  2. Step 2: Convert to fraction form
    8,994.89/12,417 = 6,600.63/x
  3. Step 3: Cross multiply
    8,994.89x = 12,417 × 6,600.63
  4. Step 4: Simplify right side
    8,994.89x = 81,960,022.71
  5. Step 5: Solve for x
    x = 81,960,022.71/8,994.89
  6. Step 6: Final answer
    x = 9,111.84

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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.