Home / 11,143.10-16,719.15-4,904.30

Finding the Fourth Proportional to 11,143.10, 16,719.15 and 4,904.30

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Solution

The fourth proportional to 11,143.10, 16,719.15 and 4,904.30 is: 7,358.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,143.10 : 16,719.15 = 4,904.30 : x
  2. Step 2: Convert to fraction form
    11,143.10/16,719.15 = 4,904.30/x
  3. Step 3: Cross multiply
    11,143.10x = 16,719.15 × 4,904.30
  4. Step 4: Simplify right side
    11,143.10x = 81,995,727.35
  5. Step 5: Solve for x
    x = 81,995,727.35/11,143.10
  6. Step 6: Final answer
    x = 7,358.43

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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.