Home / 15,094.44-20,831.28-8,380.18

Finding the Fourth Proportional to 15,094.44, 20,831.28 and 8,380.18

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Solution

The fourth proportional to 15,094.44, 20,831.28 and 8,380.18 is: 11,565.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,094.44 : 20,831.28 = 8,380.18 : x
  2. Step 2: Convert to fraction form
    15,094.44/20,831.28 = 8,380.18/x
  3. Step 3: Cross multiply
    15,094.44x = 20,831.28 × 8,380.18
  4. Step 4: Simplify right side
    15,094.44x = 174,569,929.23
  5. Step 5: Solve for x
    x = 174,569,929.23/15,094.44
  6. Step 6: Final answer
    x = 11,565.18

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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.