Home / 15,499.46-21,398.03-11,858.66

Finding the Fourth Proportional to 15,499.46, 21,398.03 and 11,858.66

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Solution

The fourth proportional to 15,499.46, 21,398.03 and 11,858.66 is: 16,371.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,499.46 : 21,398.03 = 11,858.66 : x
  2. Step 2: Convert to fraction form
    15,499.46/21,398.03 = 11,858.66/x
  3. Step 3: Cross multiply
    15,499.46x = 21,398.03 × 11,858.66
  4. Step 4: Simplify right side
    15,499.46x = 253,751,796.16
  5. Step 5: Solve for x
    x = 253,751,796.16/15,499.46
  6. Step 6: Final answer
    x = 16,371.66

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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.