Home / 12,368.11-18,534.88-5,777.95

Finding the Fourth Proportional to 12,368.11, 18,534.88 and 5,777.95

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Solution

The fourth proportional to 12,368.11, 18,534.88 and 5,777.95 is: 8,658.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,368.11 : 18,534.88 = 5,777.95 : x
  2. Step 2: Convert to fraction form
    12,368.11/18,534.88 = 5,777.95/x
  3. Step 3: Cross multiply
    12,368.11x = 18,534.88 × 5,777.95
  4. Step 4: Simplify right side
    12,368.11x = 107,093,609.90
  5. Step 5: Solve for x
    x = 107,093,609.90/12,368.11
  6. Step 6: Final answer
    x = 8,658.85

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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.