Home / 14,951.42-20,615.85-11,168.21

Finding the Fourth Proportional to 14,951.42, 20,615.85 and 11,168.21

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Solution

The fourth proportional to 14,951.42, 20,615.85 and 11,168.21 is: 15,399.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,951.42 : 20,615.85 = 11,168.21 : x
  2. Step 2: Convert to fraction form
    14,951.42/20,615.85 = 11,168.21/x
  3. Step 3: Cross multiply
    14,951.42x = 20,615.85 × 11,168.21
  4. Step 4: Simplify right side
    14,951.42x = 230,242,193.67
  5. Step 5: Solve for x
    x = 230,242,193.67/14,951.42
  6. Step 6: Final answer
    x = 15,399.35

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1.5x scale

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.