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Finding the Fourth Proportional to 8,559.46, 11,831.97 and 8,210.62

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Solution

The fourth proportional to 8,559.46, 11,831.97 and 8,210.62 is: 11,349.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,559.46 : 11,831.97 = 8,210.62 : x
  2. Step 2: Convert to fraction form
    8,559.46/11,831.97 = 8,210.62/x
  3. Step 3: Cross multiply
    8,559.46x = 11,831.97 × 8,210.62
  4. Step 4: Simplify right side
    8,559.46x = 97,147,809.52
  5. Step 5: Solve for x
    x = 97,147,809.52/8,559.46
  6. Step 6: Final answer
    x = 11,349.76

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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.