Home / 9,177.89-12,665.49-4,986.14

Finding the Fourth Proportional to 9,177.89, 12,665.49 and 4,986.14

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Solution

The fourth proportional to 9,177.89, 12,665.49 and 4,986.14 is: 6,880.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,177.89 : 12,665.49 = 4,986.14 : x
  2. Step 2: Convert to fraction form
    9,177.89/12,665.49 = 4,986.14/x
  3. Step 3: Cross multiply
    9,177.89x = 12,665.49 × 4,986.14
  4. Step 4: Simplify right side
    9,177.89x = 63,151,906.31
  5. Step 5: Solve for x
    x = 63,151,906.31/9,177.89
  6. Step 6: Final answer
    x = 6,880.87

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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.