Home / 13,211.06-18,233.14-8,176.91

Finding the Fourth Proportional to 13,211.06, 18,233.14 and 8,176.91

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Solution

The fourth proportional to 13,211.06, 18,233.14 and 8,176.91 is: 11,285.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,211.06 : 18,233.14 = 8,176.91 : x
  2. Step 2: Convert to fraction form
    13,211.06/18,233.14 = 8,176.91/x
  3. Step 3: Cross multiply
    13,211.06x = 18,233.14 × 8,176.91
  4. Step 4: Simplify right side
    13,211.06x = 149,090,633.19
  5. Step 5: Solve for x
    x = 149,090,633.19/13,211.06
  6. Step 6: Final answer
    x = 11,285.29

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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.