Home / 9,155.99-12,634.74-5,177.27

Finding the Fourth Proportional to 9,155.99, 12,634.74 and 5,177.27

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Solution

The fourth proportional to 9,155.99, 12,634.74 and 5,177.27 is: 7,144.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,155.99 : 12,634.74 = 5,177.27 : x
  2. Step 2: Convert to fraction form
    9,155.99/12,634.74 = 5,177.27/x
  3. Step 3: Cross multiply
    9,155.99x = 12,634.74 × 5,177.27
  4. Step 4: Simplify right side
    9,155.99x = 65,413,397.19
  5. Step 5: Solve for x
    x = 65,413,397.19/9,155.99
  6. Step 6: Final answer
    x = 7,144.33

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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.