Home / 15,607.96-21,546.30-11,831.80

Finding the Fourth Proportional to 15,607.96, 21,546.30 and 11,831.80

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Solution

The fourth proportional to 15,607.96, 21,546.30 and 11,831.80 is: 16,333.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,607.96 : 21,546.30 = 11,831.80 : x
  2. Step 2: Convert to fraction form
    15,607.96/21,546.30 = 11,831.80/x
  3. Step 3: Cross multiply
    15,607.96x = 21,546.30 × 11,831.80
  4. Step 4: Simplify right side
    15,607.96x = 254,931,512.34
  5. Step 5: Solve for x
    x = 254,931,512.34/15,607.96
  6. Step 6: Final answer
    x = 16,333.43

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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.