Home / 13,774.34-20,661.51-8,831.72

Finding the Fourth Proportional to 13,774.34, 20,661.51 and 8,831.72

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Solution

The fourth proportional to 13,774.34, 20,661.51 and 8,831.72 is: 13,247.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,774.34 : 20,661.51 = 8,831.72 : x
  2. Step 2: Convert to fraction form
    13,774.34/20,661.51 = 8,831.72/x
  3. Step 3: Cross multiply
    13,774.34x = 20,661.51 × 8,831.72
  4. Step 4: Simplify right side
    13,774.34x = 182,476,567.79
  5. Step 5: Solve for x
    x = 182,476,567.79/13,774.34
  6. Step 6: Final answer
    x = 13,247.58

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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.