Home / 9,177.14-12,664.49-5,400.45

Finding the Fourth Proportional to 9,177.14, 12,664.49 and 5,400.45

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Solution

The fourth proportional to 9,177.14, 12,664.49 and 5,400.45 is: 7,452.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,177.14 : 12,664.49 = 5,400.45 : x
  2. Step 2: Convert to fraction form
    9,177.14/12,664.49 = 5,400.45/x
  3. Step 3: Cross multiply
    9,177.14x = 12,664.49 × 5,400.45
  4. Step 4: Simplify right side
    9,177.14x = 68,393,918.02
  5. Step 5: Solve for x
    x = 68,393,918.02/9,177.14
  6. Step 6: Final answer
    x = 7,452.64

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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.