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Finding the Fourth Proportional to 7,047.18, 9,725.31 and 3,903.66

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Solution

The fourth proportional to 7,047.18, 9,725.31 and 3,903.66 is: 5,387.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,047.18 : 9,725.31 = 3,903.66 : x
  2. Step 2: Convert to fraction form
    7,047.18/9,725.31 = 3,903.66/x
  3. Step 3: Cross multiply
    7,047.18x = 9,725.31 × 3,903.66
  4. Step 4: Simplify right side
    7,047.18x = 37,964,303.63
  5. Step 5: Solve for x
    x = 37,964,303.63/7,047.18
  6. Step 6: Final answer
    x = 5,387.16

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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.