Home / 15,351.48-22,915.11-13,174.20

Finding the Fourth Proportional to 15,351.48, 22,915.11 and 13,174.20

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Solution

The fourth proportional to 15,351.48, 22,915.11 and 13,174.20 is: 19,665.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,351.48 : 22,915.11 = 13,174.20 : x
  2. Step 2: Convert to fraction form
    15,351.48/22,915.11 = 13,174.20/x
  3. Step 3: Cross multiply
    15,351.48x = 22,915.11 × 13,174.20
  4. Step 4: Simplify right side
    15,351.48x = 301,888,242.16
  5. Step 5: Solve for x
    x = 301,888,242.16/15,351.48
  6. Step 6: Final answer
    x = 19,665.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.