Home / 11,143.40-16,724.55-4,574.30

Finding the Fourth Proportional to 11,143.40, 16,724.55 and 4,574.30

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Solution

The fourth proportional to 11,143.40, 16,724.55 and 4,574.30 is: 6,865.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,143.40 : 16,724.55 = 4,574.30 : x
  2. Step 2: Convert to fraction form
    11,143.40/16,724.55 = 4,574.30/x
  3. Step 3: Cross multiply
    11,143.40x = 16,724.55 × 4,574.30
  4. Step 4: Simplify right side
    11,143.40x = 76,503,109.07
  5. Step 5: Solve for x
    x = 76,503,109.07/11,143.40
  6. Step 6: Final answer
    x = 6,865.33

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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.