Home / 11,143.40-16,723.20-4,574.30

Finding the Fourth Proportional to 11,143.40, 16,723.20 and 4,574.30

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Solution

The fourth proportional to 11,143.40, 16,723.20 and 4,574.30 is: 6,864.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,143.40 : 16,723.20 = 4,574.30 : x
  2. Step 2: Convert to fraction form
    11,143.40/16,723.20 = 4,574.30/x
  3. Step 3: Cross multiply
    11,143.40x = 16,723.20 × 4,574.30
  4. Step 4: Simplify right side
    11,143.40x = 76,496,933.76
  5. Step 5: Solve for x
    x = 76,496,933.76/11,143.40
  6. Step 6: Final answer
    x = 6,864.78

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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.