Home / 15,496.96-21,379.26-9,208.12

Finding the Fourth Proportional to 15,496.96, 21,379.26 and 9,208.12

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Solution

The fourth proportional to 15,496.96, 21,379.26 and 9,208.12 is: 12,703.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,496.96 : 21,379.26 = 9,208.12 : x
  2. Step 2: Convert to fraction form
    15,496.96/21,379.26 = 9,208.12/x
  3. Step 3: Cross multiply
    15,496.96x = 21,379.26 × 9,208.12
  4. Step 4: Simplify right side
    15,496.96x = 196,862,791.59
  5. Step 5: Solve for x
    x = 196,862,791.59/15,496.96
  6. Step 6: Final answer
    x = 12,703.32

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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.