Home / 13,208.94-18,228.91-7,902.74

Finding the Fourth Proportional to 13,208.94, 18,228.91 and 7,902.74

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Solution

The fourth proportional to 13,208.94, 18,228.91 and 7,902.74 is: 10,906.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,208.94 : 18,228.91 = 7,902.74 : x
  2. Step 2: Convert to fraction form
    13,208.94/18,228.91 = 7,902.74/x
  3. Step 3: Cross multiply
    13,208.94x = 18,228.91 × 7,902.74
  4. Step 4: Simplify right side
    13,208.94x = 144,058,336.21
  5. Step 5: Solve for x
    x = 144,058,336.21/13,208.94
  6. Step 6: Final answer
    x = 10,906.12

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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.