Home / 14,831.88-20,470.28-8,458.47

Finding the Fourth Proportional to 14,831.88, 20,470.28 and 8,458.47

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Solution

The fourth proportional to 14,831.88, 20,470.28 and 8,458.47 is: 11,673.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,831.88 : 20,470.28 = 8,458.47 : x
  2. Step 2: Convert to fraction form
    14,831.88/20,470.28 = 8,458.47/x
  3. Step 3: Cross multiply
    14,831.88x = 20,470.28 × 8,458.47
  4. Step 4: Simplify right side
    14,831.88x = 173,147,206.98
  5. Step 5: Solve for x
    x = 173,147,206.98/14,831.88
  6. Step 6: Final answer
    x = 11,673.99

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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.