Home / 15,741.54-21,710.41-11,487.82

Finding the Fourth Proportional to 15,741.54, 21,710.41 and 11,487.82

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Solution

The fourth proportional to 15,741.54, 21,710.41 and 11,487.82 is: 15,843.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,741.54 : 21,710.41 = 11,487.82 : x
  2. Step 2: Convert to fraction form
    15,741.54/21,710.41 = 11,487.82/x
  3. Step 3: Cross multiply
    15,741.54x = 21,710.41 × 11,487.82
  4. Step 4: Simplify right side
    15,741.54x = 249,405,282.21
  5. Step 5: Solve for x
    x = 249,405,282.21/15,741.54
  6. Step 6: Final answer
    x = 15,843.77

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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.