Home / 15,512.82-21,411.63-9,933.54

Finding the Fourth Proportional to 15,512.82, 21,411.63 and 9,933.54

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Solution

The fourth proportional to 15,512.82, 21,411.63 and 9,933.54 is: 13,710.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,512.82 : 21,411.63 = 9,933.54 : x
  2. Step 2: Convert to fraction form
    15,512.82/21,411.63 = 9,933.54/x
  3. Step 3: Cross multiply
    15,512.82x = 21,411.63 × 9,933.54
  4. Step 4: Simplify right side
    15,512.82x = 212,693,283.07
  5. Step 5: Solve for x
    x = 212,693,283.07/15,512.82
  6. Step 6: Final answer
    x = 13,710.81

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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.