Home / 9,176.24-13,687.93-8,290.40

Finding the Fourth Proportional to 9,176.24, 13,687.93 and 8,290.40

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Solution

The fourth proportional to 9,176.24, 13,687.93 and 8,290.40 is: 12,366.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,176.24 : 13,687.93 = 8,290.40 : x
  2. Step 2: Convert to fraction form
    9,176.24/13,687.93 = 8,290.40/x
  3. Step 3: Cross multiply
    9,176.24x = 13,687.93 × 8,290.40
  4. Step 4: Simplify right side
    9,176.24x = 113,478,414.87
  5. Step 5: Solve for x
    x = 113,478,414.87/9,176.24
  6. Step 6: Final answer
    x = 12,366.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.