Home / 9,155.54-12,634.58-5,176.65

Finding the Fourth Proportional to 9,155.54, 12,634.58 and 5,176.65

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Solution

The fourth proportional to 9,155.54, 12,634.58 and 5,176.65 is: 7,143.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,155.54 : 12,634.58 = 5,176.65 : x
  2. Step 2: Convert to fraction form
    9,155.54/12,634.58 = 5,176.65/x
  3. Step 3: Cross multiply
    9,155.54x = 12,634.58 × 5,176.65
  4. Step 4: Simplify right side
    9,155.54x = 65,404,772.67
  5. Step 5: Solve for x
    x = 65,404,772.67/9,155.54
  6. Step 6: Final answer
    x = 7,143.74

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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.