Home / 11,140.24-15,372.96-6,424.24

Finding the Fourth Proportional to 11,140.24, 15,372.96 and 6,424.24

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Solution

The fourth proportional to 11,140.24, 15,372.96 and 6,424.24 is: 8,865.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,140.24 : 15,372.96 = 6,424.24 : x
  2. Step 2: Convert to fraction form
    11,140.24/15,372.96 = 6,424.24/x
  3. Step 3: Cross multiply
    11,140.24x = 15,372.96 × 6,424.24
  4. Step 4: Simplify right side
    11,140.24x = 98,759,584.55
  5. Step 5: Solve for x
    x = 98,759,584.55/11,140.24
  6. Step 6: Final answer
    x = 8,865.12

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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.