Home / 15,372.76-21,215.44-11,589.26

Finding the Fourth Proportional to 15,372.76, 21,215.44 and 11,589.26

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Solution

The fourth proportional to 15,372.76, 21,215.44 and 11,589.26 is: 15,993.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,372.76 : 21,215.44 = 11,589.26 : x
  2. Step 2: Convert to fraction form
    15,372.76/21,215.44 = 11,589.26/x
  3. Step 3: Cross multiply
    15,372.76x = 21,215.44 × 11,589.26
  4. Step 4: Simplify right side
    15,372.76x = 245,871,250.17
  5. Step 5: Solve for x
    x = 245,871,250.17/15,372.76
  6. Step 6: Final answer
    x = 15,993.96

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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.