Home / 9,396.57-12,966.77-5,147.42

Finding the Fourth Proportional to 9,396.57, 12,966.77 and 5,147.42

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Solution

The fourth proportional to 9,396.57, 12,966.77 and 5,147.42 is: 7,103.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,396.57 : 12,966.77 = 5,147.42 : x
  2. Step 2: Convert to fraction form
    9,396.57/12,966.77 = 5,147.42/x
  3. Step 3: Cross multiply
    9,396.57x = 12,966.77 × 5,147.42
  4. Step 4: Simplify right side
    9,396.57x = 66,745,411.23
  5. Step 5: Solve for x
    x = 66,745,411.23/9,396.57
  6. Step 6: Final answer
    x = 7,103.17

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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.