Home / 10,117.23-13,960.35-5,640.33

Finding the Fourth Proportional to 10,117.23, 13,960.35 and 5,640.33

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Solution

The fourth proportional to 10,117.23, 13,960.35 and 5,640.33 is: 7,782.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,117.23 : 13,960.35 = 5,640.33 : x
  2. Step 2: Convert to fraction form
    10,117.23/13,960.35 = 5,640.33/x
  3. Step 3: Cross multiply
    10,117.23x = 13,960.35 × 5,640.33
  4. Step 4: Simplify right side
    10,117.23x = 78,741,033.27
  5. Step 5: Solve for x
    x = 78,741,033.27/10,117.23
  6. Step 6: Final answer
    x = 7,782.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.