Home / 13,831.98-20,749.26-5,509.98

Finding the Fourth Proportional to 13,831.98, 20,749.26 and 5,509.98

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Solution

The fourth proportional to 13,831.98, 20,749.26 and 5,509.98 is: 8,265.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,831.98 : 20,749.26 = 5,509.98 : x
  2. Step 2: Convert to fraction form
    13,831.98/20,749.26 = 5,509.98/x
  3. Step 3: Cross multiply
    13,831.98x = 20,749.26 × 5,509.98
  4. Step 4: Simplify right side
    13,831.98x = 114,328,007.61
  5. Step 5: Solve for x
    x = 114,328,007.61/13,831.98
  6. Step 6: Final answer
    x = 8,265.48

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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.