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Finding the Fourth Proportional to 15,374.53, 21,218.46 and 9,410.18

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Solution

The fourth proportional to 15,374.53, 21,218.46 and 9,410.18 is: 12,987.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,374.53 : 21,218.46 = 9,410.18 : x
  2. Step 2: Convert to fraction form
    15,374.53/21,218.46 = 9,410.18/x
  3. Step 3: Cross multiply
    15,374.53x = 21,218.46 × 9,410.18
  4. Step 4: Simplify right side
    15,374.53x = 199,669,386.54
  5. Step 5: Solve for x
    x = 199,669,386.54/15,374.53
  6. Step 6: Final answer
    x = 12,987.02

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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.