Home / 15,507.03-21,399.48-8,433.30

Finding the Fourth Proportional to 15,507.03, 21,399.48 and 8,433.30

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Solution

The fourth proportional to 15,507.03, 21,399.48 and 8,433.30 is: 11,637.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,507.03 : 21,399.48 = 8,433.30 : x
  2. Step 2: Convert to fraction form
    15,507.03/21,399.48 = 8,433.30/x
  3. Step 3: Cross multiply
    15,507.03x = 21,399.48 × 8,433.30
  4. Step 4: Simplify right side
    15,507.03x = 180,468,234.68
  5. Step 5: Solve for x
    x = 180,468,234.68/15,507.03
  6. Step 6: Final answer
    x = 11,637.83

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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.