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Finding the Fourth Proportional to 7,145.48, 9,851.56 and 4,623.12

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Solution

The fourth proportional to 7,145.48, 9,851.56 and 4,623.12 is: 6,373.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,145.48 : 9,851.56 = 4,623.12 : x
  2. Step 2: Convert to fraction form
    7,145.48/9,851.56 = 4,623.12/x
  3. Step 3: Cross multiply
    7,145.48x = 9,851.56 × 4,623.12
  4. Step 4: Simplify right side
    7,145.48x = 45,544,944.07
  5. Step 5: Solve for x
    x = 45,544,944.07/7,145.48
  6. Step 6: Final answer
    x = 6,373.95

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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.