Home / 16,831.86-23,228.13-9,278.34

Finding the Fourth Proportional to 16,831.86, 23,228.13 and 9,278.34

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Solution

The fourth proportional to 16,831.86, 23,228.13 and 9,278.34 is: 12,804.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,831.86 : 23,228.13 = 9,278.34 : x
  2. Step 2: Convert to fraction form
    16,831.86/23,228.13 = 9,278.34/x
  3. Step 3: Cross multiply
    16,831.86x = 23,228.13 × 9,278.34
  4. Step 4: Simplify right side
    16,831.86x = 215,518,487.70
  5. Step 5: Solve for x
    x = 215,518,487.70/16,831.86
  6. Step 6: Final answer
    x = 12,804.20

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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.