Home / 18,777.20-28,165.77-7,537.59

Finding the Fourth Proportional to 18,777.20, 28,165.77 and 7,537.59

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Solution

The fourth proportional to 18,777.20, 28,165.77 and 7,537.59 is: 11,306.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,777.20 : 28,165.77 = 7,537.59 : x
  2. Step 2: Convert to fraction form
    18,777.20/28,165.77 = 7,537.59/x
  3. Step 3: Cross multiply
    18,777.20x = 28,165.77 × 7,537.59
  4. Step 4: Simplify right side
    18,777.20x = 212,302,026.29
  5. Step 5: Solve for x
    x = 212,302,026.29/18,777.20
  6. Step 6: Final answer
    x = 11,306.38

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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.