Home / 16,931.28-25,403.40-8,165.46

Finding the Fourth Proportional to 16,931.28, 25,403.40 and 8,165.46

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Solution

The fourth proportional to 16,931.28, 25,403.40 and 8,165.46 is: 12,251.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,931.28 : 25,403.40 = 8,165.46 : x
  2. Step 2: Convert to fraction form
    16,931.28/25,403.40 = 8,165.46/x
  3. Step 3: Cross multiply
    16,931.28x = 25,403.40 × 8,165.46
  4. Step 4: Simplify right side
    16,931.28x = 207,430,446.56
  5. Step 5: Solve for x
    x = 207,430,446.56/16,931.28
  6. Step 6: Final answer
    x = 12,251.32

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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.