Home / 13,598.89-20,400.39-4,831.72

Finding the Fourth Proportional to 13,598.89, 20,400.39 and 4,831.72

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Solution

The fourth proportional to 13,598.89, 20,400.39 and 4,831.72 is: 7,248.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,598.89 : 20,400.39 = 4,831.72 : x
  2. Step 2: Convert to fraction form
    13,598.89/20,400.39 = 4,831.72/x
  3. Step 3: Cross multiply
    13,598.89x = 20,400.39 × 4,831.72
  4. Step 4: Simplify right side
    13,598.89x = 98,568,921.37
  5. Step 5: Solve for x
    x = 98,568,921.37/13,598.89
  6. Step 6: Final answer
    x = 7,248.31

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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.