Home / 15,757.72-21,752.84-11,223.32

Finding the Fourth Proportional to 15,757.72, 21,752.84 and 11,223.32

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Solution

The fourth proportional to 15,757.72, 21,752.84 and 11,223.32 is: 15,493.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,757.72 : 21,752.84 = 11,223.32 : x
  2. Step 2: Convert to fraction form
    15,757.72/21,752.84 = 11,223.32/x
  3. Step 3: Cross multiply
    15,757.72x = 21,752.84 × 11,223.32
  4. Step 4: Simplify right side
    15,757.72x = 244,139,084.23
  5. Step 5: Solve for x
    x = 244,139,084.23/15,757.72
  6. Step 6: Final answer
    x = 15,493.30

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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.