Home / 15,451.62-21,321.64-9,483.54

Finding the Fourth Proportional to 15,451.62, 21,321.64 and 9,483.54

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Solution

The fourth proportional to 15,451.62, 21,321.64 and 9,483.54 is: 13,086.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,451.62 : 21,321.64 = 9,483.54 : x
  2. Step 2: Convert to fraction form
    15,451.62/21,321.64 = 9,483.54/x
  3. Step 3: Cross multiply
    15,451.62x = 21,321.64 × 9,483.54
  4. Step 4: Simplify right side
    15,451.62x = 202,204,625.81
  5. Step 5: Solve for x
    x = 202,204,625.81/15,451.62
  6. Step 6: Final answer
    x = 13,086.31

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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.