Home / 9,290.57-12,831.63-6,118.05

Finding the Fourth Proportional to 9,290.57, 12,831.63 and 6,118.05

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Solution

The fourth proportional to 9,290.57, 12,831.63 and 6,118.05 is: 8,449.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,290.57 : 12,831.63 = 6,118.05 : x
  2. Step 2: Convert to fraction form
    9,290.57/12,831.63 = 6,118.05/x
  3. Step 3: Cross multiply
    9,290.57x = 12,831.63 × 6,118.05
  4. Step 4: Simplify right side
    9,290.57x = 78,504,553.92
  5. Step 5: Solve for x
    x = 78,504,553.92/9,290.57
  6. Step 6: Final answer
    x = 8,449.92

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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.