Home / 11,420.15-17,138.87-4,850.94

Finding the Fourth Proportional to 11,420.15, 17,138.87 and 4,850.94

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Solution

The fourth proportional to 11,420.15, 17,138.87 and 4,850.94 is: 7,280.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,420.15 : 17,138.87 = 4,850.94 : x
  2. Step 2: Convert to fraction form
    11,420.15/17,138.87 = 4,850.94/x
  3. Step 3: Cross multiply
    11,420.15x = 17,138.87 × 4,850.94
  4. Step 4: Simplify right side
    11,420.15x = 83,139,642.17
  5. Step 5: Solve for x
    x = 83,139,642.17/11,420.15
  6. Step 6: Final answer
    x = 7,280.09

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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.