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Finding the Fourth Proportional to 7,162, 9,884.64 and 4,369.12

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Solution

The fourth proportional to 7,162, 9,884.64 and 4,369.12 is: 6,030.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,162 : 9,884.64 = 4,369.12 : x
  2. Step 2: Convert to fraction form
    7,162/9,884.64 = 4,369.12/x
  3. Step 3: Cross multiply
    7,162x = 9,884.64 × 4,369.12
  4. Step 4: Simplify right side
    7,162x = 43,187,178.32
  5. Step 5: Solve for x
    x = 43,187,178.32/7,162
  6. Step 6: Final answer
    x = 6,030.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.