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Finding the Fourth Proportional to 15,802.73, 21,807.58 and 8,632.61

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Solution

The fourth proportional to 15,802.73, 21,807.58 and 8,632.61 is: 11,912.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,802.73 : 21,807.58 = 8,632.61 : x
  2. Step 2: Convert to fraction form
    15,802.73/21,807.58 = 8,632.61/x
  3. Step 3: Cross multiply
    15,802.73x = 21,807.58 × 8,632.61
  4. Step 4: Simplify right side
    15,802.73x = 188,256,333.18
  5. Step 5: Solve for x
    x = 188,256,333.18/15,802.73
  6. Step 6: Final answer
    x = 11,912.90

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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.