Home / 17,778.32-26,628.60-10,831.76

Finding the Fourth Proportional to 17,778.32, 26,628.60 and 10,831.76

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Solution

The fourth proportional to 17,778.32, 26,628.60 and 10,831.76 is: 16,223.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,778.32 : 26,628.60 = 10,831.76 : x
  2. Step 2: Convert to fraction form
    17,778.32/26,628.60 = 10,831.76/x
  3. Step 3: Cross multiply
    17,778.32x = 26,628.60 × 10,831.76
  4. Step 4: Simplify right side
    17,778.32x = 288,434,604.34
  5. Step 5: Solve for x
    x = 288,434,604.34/17,778.32
  6. Step 6: Final answer
    x = 16,223.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.