Home / 10,140.92-13,993.48-5,890.88

Finding the Fourth Proportional to 10,140.92, 13,993.48 and 5,890.88

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Solution

The fourth proportional to 10,140.92, 13,993.48 and 5,890.88 is: 8,128.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,140.92 : 13,993.48 = 5,890.88 : x
  2. Step 2: Convert to fraction form
    10,140.92/13,993.48 = 5,890.88/x
  3. Step 3: Cross multiply
    10,140.92x = 13,993.48 × 5,890.88
  4. Step 4: Simplify right side
    10,140.92x = 82,433,911.46
  5. Step 5: Solve for x
    x = 82,433,911.46/10,140.92
  6. Step 6: Final answer
    x = 8,128.84

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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.