Home / 15,094.37-20,831.46-8,380.64

Finding the Fourth Proportional to 15,094.37, 20,831.46 and 8,380.64

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Solution

The fourth proportional to 15,094.37, 20,831.46 and 8,380.64 is: 11,565.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,094.37 : 20,831.46 = 8,380.64 : x
  2. Step 2: Convert to fraction form
    15,094.37/20,831.46 = 8,380.64/x
  3. Step 3: Cross multiply
    15,094.37x = 20,831.46 × 8,380.64
  4. Step 4: Simplify right side
    15,094.37x = 174,580,966.93
  5. Step 5: Solve for x
    x = 174,580,966.93/15,094.37
  6. Step 6: Final answer
    x = 11,565.97

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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.