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Finding the Fourth Proportional to 12,892.76, 17,802.06 and 9,903.86

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Solution

The fourth proportional to 12,892.76, 17,802.06 and 9,903.86 is: 13,675.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,892.76 : 17,802.06 = 9,903.86 : x
  2. Step 2: Convert to fraction form
    12,892.76/17,802.06 = 9,903.86/x
  3. Step 3: Cross multiply
    12,892.76x = 17,802.06 × 9,903.86
  4. Step 4: Simplify right side
    12,892.76x = 176,309,109.95
  5. Step 5: Solve for x
    x = 176,309,109.95/12,892.76
  6. Step 6: Final answer
    x = 13,675.05

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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.