Home / 14,636.28-20,197.92-7,921.77

Finding the Fourth Proportional to 14,636.28, 20,197.92 and 7,921.77

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Solution

The fourth proportional to 14,636.28, 20,197.92 and 7,921.77 is: 10,931.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,636.28 : 20,197.92 = 7,921.77 : x
  2. Step 2: Convert to fraction form
    14,636.28/20,197.92 = 7,921.77/x
  3. Step 3: Cross multiply
    14,636.28x = 20,197.92 × 7,921.77
  4. Step 4: Simplify right side
    14,636.28x = 160,003,276.72
  5. Step 5: Solve for x
    x = 160,003,276.72/14,636.28
  6. Step 6: Final answer
    x = 10,931.96

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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.