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Finding the Fourth Proportional to 14,998.39, 20,701.78 and 8,625.68

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Solution

The fourth proportional to 14,998.39, 20,701.78 and 8,625.68 is: 11,905.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,998.39 : 20,701.78 = 8,625.68 : x
  2. Step 2: Convert to fraction form
    14,998.39/20,701.78 = 8,625.68/x
  3. Step 3: Cross multiply
    14,998.39x = 20,701.78 × 8,625.68
  4. Step 4: Simplify right side
    14,998.39x = 178,566,929.71
  5. Step 5: Solve for x
    x = 178,566,929.71/14,998.39
  6. Step 6: Final answer
    x = 11,905.74

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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.