Home / 13,217.99-18,233.91-7,837.29

Finding the Fourth Proportional to 13,217.99, 18,233.91 and 7,837.29

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Solution

The fourth proportional to 13,217.99, 18,233.91 and 7,837.29 is: 10,811.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,217.99 : 18,233.91 = 7,837.29 : x
  2. Step 2: Convert to fraction form
    13,217.99/18,233.91 = 7,837.29/x
  3. Step 3: Cross multiply
    13,217.99x = 18,233.91 × 7,837.29
  4. Step 4: Simplify right side
    13,217.99x = 142,904,440.50
  5. Step 5: Solve for x
    x = 142,904,440.50/13,217.99
  6. Step 6: Final answer
    x = 10,811.36

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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.