Home / 15,404.82-21,253.62-9,430.26

Finding the Fourth Proportional to 15,404.82, 21,253.62 and 9,430.26

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Solution

The fourth proportional to 15,404.82, 21,253.62 and 9,430.26 is: 13,010.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,404.82 : 21,253.62 = 9,430.26 : x
  2. Step 2: Convert to fraction form
    15,404.82/21,253.62 = 9,430.26/x
  3. Step 3: Cross multiply
    15,404.82x = 21,253.62 × 9,430.26
  4. Step 4: Simplify right side
    15,404.82x = 200,427,162.54
  5. Step 5: Solve for x
    x = 200,427,162.54/15,404.82
  6. Step 6: Final answer
    x = 13,010.68

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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.