Home / 15,505.72-23,270.46-7,721.08

Finding the Fourth Proportional to 15,505.72, 23,270.46 and 7,721.08

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Solution

The fourth proportional to 15,505.72, 23,270.46 and 7,721.08 is: 11,587.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,505.72 : 23,270.46 = 7,721.08 : x
  2. Step 2: Convert to fraction form
    15,505.72/23,270.46 = 7,721.08/x
  3. Step 3: Cross multiply
    15,505.72x = 23,270.46 × 7,721.08
  4. Step 4: Simplify right side
    15,505.72x = 179,673,083.30
  5. Step 5: Solve for x
    x = 179,673,083.30/15,505.72
  6. Step 6: Final answer
    x = 11,587.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.