Home / 9,195.27-12,688.47-5,418.15

Finding the Fourth Proportional to 9,195.27, 12,688.47 and 5,418.15

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Solution

The fourth proportional to 9,195.27, 12,688.47 and 5,418.15 is: 7,476.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,195.27 : 12,688.47 = 5,418.15 : x
  2. Step 2: Convert to fraction form
    9,195.27/12,688.47 = 5,418.15/x
  3. Step 3: Cross multiply
    9,195.27x = 12,688.47 × 5,418.15
  4. Step 4: Simplify right side
    9,195.27x = 68,748,033.73
  5. Step 5: Solve for x
    x = 68,748,033.73/9,195.27
  6. Step 6: Final answer
    x = 7,476.46

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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.