Home / 13,887.39-20,831.49-4,527.30

Finding the Fourth Proportional to 13,887.39, 20,831.49 and 4,527.30

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Solution

The fourth proportional to 13,887.39, 20,831.49 and 4,527.30 is: 6,791.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,887.39 : 20,831.49 = 4,527.30 : x
  2. Step 2: Convert to fraction form
    13,887.39/20,831.49 = 4,527.30/x
  3. Step 3: Cross multiply
    13,887.39x = 20,831.49 × 4,527.30
  4. Step 4: Simplify right side
    13,887.39x = 94,310,404.68
  5. Step 5: Solve for x
    x = 94,310,404.68/13,887.39
  6. Step 6: Final answer
    x = 6,791.08

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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.