Home / 11,318.24-15,615.36-6,840.26

Finding the Fourth Proportional to 11,318.24, 15,615.36 and 6,840.26

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Solution

The fourth proportional to 11,318.24, 15,615.36 and 6,840.26 is: 9,437.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,318.24 : 15,615.36 = 6,840.26 : x
  2. Step 2: Convert to fraction form
    11,318.24/15,615.36 = 6,840.26/x
  3. Step 3: Cross multiply
    11,318.24x = 15,615.36 × 6,840.26
  4. Step 4: Simplify right side
    11,318.24x = 106,813,122.39
  5. Step 5: Solve for x
    x = 106,813,122.39/11,318.24
  6. Step 6: Final answer
    x = 9,437.26

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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.