Home / 13,415.18-20,122.94-4,055.27

Finding the Fourth Proportional to 13,415.18, 20,122.94 and 4,055.27

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Solution

The fourth proportional to 13,415.18, 20,122.94 and 4,055.27 is: 6,082.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,415.18 : 20,122.94 = 4,055.27 : x
  2. Step 2: Convert to fraction form
    13,415.18/20,122.94 = 4,055.27/x
  3. Step 3: Cross multiply
    13,415.18x = 20,122.94 × 4,055.27
  4. Step 4: Simplify right side
    13,415.18x = 81,603,864.42
  5. Step 5: Solve for x
    x = 81,603,864.42/13,415.18
  6. Step 6: Final answer
    x = 6,082.95

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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.