Home / 9,154.90-12,634.55-5,176.72

Finding the Fourth Proportional to 9,154.90, 12,634.55 and 5,176.72

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Solution

The fourth proportional to 9,154.90, 12,634.55 and 5,176.72 is: 7,144.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,154.90 : 12,634.55 = 5,176.72 : x
  2. Step 2: Convert to fraction form
    9,154.90/12,634.55 = 5,176.72/x
  3. Step 3: Cross multiply
    9,154.90x = 12,634.55 × 5,176.72
  4. Step 4: Simplify right side
    9,154.90x = 65,405,527.68
  5. Step 5: Solve for x
    x = 65,405,527.68/9,154.90
  6. Step 6: Final answer
    x = 7,144.32

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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.