Home / 7,422.60-11,117.70-6,601.80

Finding the Fourth Proportional to 7,422.60, 11,117.70 and 6,601.80

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Solution

The fourth proportional to 7,422.60, 11,117.70 and 6,601.80 is: 9,888.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,422.60 : 11,117.70 = 6,601.80 : x
  2. Step 2: Convert to fraction form
    7,422.60/11,117.70 = 6,601.80/x
  3. Step 3: Cross multiply
    7,422.60x = 11,117.70 × 6,601.80
  4. Step 4: Simplify right side
    7,422.60x = 73,396,831.86
  5. Step 5: Solve for x
    x = 73,396,831.86/7,422.60
  6. Step 6: Final answer
    x = 9,888.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.