Home / 11,143.32-16,703.75-6,986.25

Finding the Fourth Proportional to 11,143.32, 16,703.75 and 6,986.25

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Solution

The fourth proportional to 11,143.32, 16,703.75 and 6,986.25 is: 10,472.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,143.32 : 16,703.75 = 6,986.25 : x
  2. Step 2: Convert to fraction form
    11,143.32/16,703.75 = 6,986.25/x
  3. Step 3: Cross multiply
    11,143.32x = 16,703.75 × 6,986.25
  4. Step 4: Simplify right side
    11,143.32x = 116,696,454.99
  5. Step 5: Solve for x
    x = 116,696,454.99/11,143.32
  6. Step 6: Final answer
    x = 10,472.33

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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.