Home / 19,174.78-28,801.53-12,610.30

Finding the Fourth Proportional to 19,174.78, 28,801.53 and 12,610.30

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Solution

The fourth proportional to 19,174.78, 28,801.53 and 12,610.30 is: 18,941.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,174.78 : 28,801.53 = 12,610.30 : x
  2. Step 2: Convert to fraction form
    19,174.78/28,801.53 = 12,610.30/x
  3. Step 3: Cross multiply
    19,174.78x = 28,801.53 × 12,610.30
  4. Step 4: Simplify right side
    19,174.78x = 363,195,933.76
  5. Step 5: Solve for x
    x = 363,195,933.76/19,174.78
  6. Step 6: Final answer
    x = 18,941.34

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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.