Home / 15,546.54-21,453.45-8,831.28

Finding the Fourth Proportional to 15,546.54, 21,453.45 and 8,831.28

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Solution

The fourth proportional to 15,546.54, 21,453.45 and 8,831.28 is: 12,186.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,546.54 : 21,453.45 = 8,831.28 : x
  2. Step 2: Convert to fraction form
    15,546.54/21,453.45 = 8,831.28/x
  3. Step 3: Cross multiply
    15,546.54x = 21,453.45 × 8,831.28
  4. Step 4: Simplify right side
    15,546.54x = 189,461,423.92
  5. Step 5: Solve for x
    x = 189,461,423.92/15,546.54
  6. Step 6: Final answer
    x = 12,186.73

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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.