Home / 9,177.07-12,662.17-5,400.40

Finding the Fourth Proportional to 9,177.07, 12,662.17 and 5,400.40

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Solution

The fourth proportional to 9,177.07, 12,662.17 and 5,400.40 is: 7,451.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,177.07 : 12,662.17 = 5,400.40 : x
  2. Step 2: Convert to fraction form
    9,177.07/12,662.17 = 5,400.40/x
  3. Step 3: Cross multiply
    9,177.07x = 12,662.17 × 5,400.40
  4. Step 4: Simplify right side
    9,177.07x = 68,380,782.87
  5. Step 5: Solve for x
    x = 68,380,782.87/9,177.07
  6. Step 6: Final answer
    x = 7,451.27

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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.