Home / 11,142.57-15,376.91-6,107.25

Finding the Fourth Proportional to 11,142.57, 15,376.91 and 6,107.25

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Solution

The fourth proportional to 11,142.57, 15,376.91 and 6,107.25 is: 8,428.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,142.57 : 15,376.91 = 6,107.25 : x
  2. Step 2: Convert to fraction form
    11,142.57/15,376.91 = 6,107.25/x
  3. Step 3: Cross multiply
    11,142.57x = 15,376.91 × 6,107.25
  4. Step 4: Simplify right side
    11,142.57x = 93,910,603.06
  5. Step 5: Solve for x
    x = 93,910,603.06/11,142.57
  6. Step 6: Final answer
    x = 8,428.09

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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.