Home / 11,137.23-15,370.11-6,421.82

Finding the Fourth Proportional to 11,137.23, 15,370.11 and 6,421.82

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Solution

The fourth proportional to 11,137.23, 15,370.11 and 6,421.82 is: 8,862.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,137.23 : 15,370.11 = 6,421.82 : x
  2. Step 2: Convert to fraction form
    11,137.23/15,370.11 = 6,421.82/x
  3. Step 3: Cross multiply
    11,137.23x = 15,370.11 × 6,421.82
  4. Step 4: Simplify right side
    11,137.23x = 98,704,002.95
  5. Step 5: Solve for x
    x = 98,704,002.95/11,137.23
  6. Step 6: Final answer
    x = 8,862.53

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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.