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Finding the Fourth Proportional to 15,798.63, 21,800.97 and 9,084.21

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Solution

The fourth proportional to 15,798.63, 21,800.97 and 9,084.21 is: 12,535.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,798.63 : 21,800.97 = 9,084.21 : x
  2. Step 2: Convert to fraction form
    15,798.63/21,800.97 = 9,084.21/x
  3. Step 3: Cross multiply
    15,798.63x = 21,800.97 × 9,084.21
  4. Step 4: Simplify right side
    15,798.63x = 198,044,589.68
  5. Step 5: Solve for x
    x = 198,044,589.68/15,798.63
  6. Step 6: Final answer
    x = 12,535.55

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Double scale
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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.