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Finding the Fourth Proportional to 12,475.14, 17,218.16 and 7,436.85

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Solution

The fourth proportional to 12,475.14, 17,218.16 and 7,436.85 is: 10,264.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,475.14 : 17,218.16 = 7,436.85 : x
  2. Step 2: Convert to fraction form
    12,475.14/17,218.16 = 7,436.85/x
  3. Step 3: Cross multiply
    12,475.14x = 17,218.16 × 7,436.85
  4. Step 4: Simplify right side
    12,475.14x = 128,048,836.01
  5. Step 5: Solve for x
    x = 128,048,836.01/12,475.14
  6. Step 6: Final answer
    x = 10,264.32

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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.