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Finding the Fourth Proportional to 15,039.21, 22,551.86 and 8,465.39

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Solution

The fourth proportional to 15,039.21, 22,551.86 and 8,465.39 is: 12,694.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,039.21 : 22,551.86 = 8,465.39 : x
  2. Step 2: Convert to fraction form
    15,039.21/22,551.86 = 8,465.39/x
  3. Step 3: Cross multiply
    15,039.21x = 22,551.86 × 8,465.39
  4. Step 4: Simplify right side
    15,039.21x = 190,910,304.18
  5. Step 5: Solve for x
    x = 190,910,304.18/15,039.21
  6. Step 6: Final answer
    x = 12,694.17

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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.