Home / 9,119.87-12,590.17-6,473.60

Finding the Fourth Proportional to 9,119.87, 12,590.17 and 6,473.60

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Solution

The fourth proportional to 9,119.87, 12,590.17 and 6,473.60 is: 8,936.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,119.87 : 12,590.17 = 6,473.60 : x
  2. Step 2: Convert to fraction form
    9,119.87/12,590.17 = 6,473.60/x
  3. Step 3: Cross multiply
    9,119.87x = 12,590.17 × 6,473.60
  4. Step 4: Simplify right side
    9,119.87x = 81,503,684.49
  5. Step 5: Solve for x
    x = 81,503,684.49/9,119.87
  6. Step 6: Final answer
    x = 8,936.94

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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.