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Finding the Fourth Proportional to 15,798.96, 21,802.86 and 8,725.23

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Solution

The fourth proportional to 15,798.96, 21,802.86 and 8,725.23 is: 12,040.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,798.96 : 21,802.86 = 8,725.23 : x
  2. Step 2: Convert to fraction form
    15,798.96/21,802.86 = 8,725.23/x
  3. Step 3: Cross multiply
    15,798.96x = 21,802.86 × 8,725.23
  4. Step 4: Simplify right side
    15,798.96x = 190,234,968.16
  5. Step 5: Solve for x
    x = 190,234,968.16/15,798.96
  6. Step 6: Final answer
    x = 12,040.98

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.