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Finding the Fourth Proportional to 14,479.59, 21,712.05 and 7,072.95

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Solution

The fourth proportional to 14,479.59, 21,712.05 and 7,072.95 is: 10,605.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,479.59 : 21,712.05 = 7,072.95 : x
  2. Step 2: Convert to fraction form
    14,479.59/21,712.05 = 7,072.95/x
  3. Step 3: Cross multiply
    14,479.59x = 21,712.05 × 7,072.95
  4. Step 4: Simplify right side
    14,479.59x = 153,568,244.05
  5. Step 5: Solve for x
    x = 153,568,244.05/14,479.59
  6. Step 6: Final answer
    x = 10,605.84

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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.