Home / 17,755.48-26,618.60-12,117.57

Finding the Fourth Proportional to 17,755.48, 26,618.60 and 12,117.57

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Solution

The fourth proportional to 17,755.48, 26,618.60 and 12,117.57 is: 18,166.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,755.48 : 26,618.60 = 12,117.57 : x
  2. Step 2: Convert to fraction form
    17,755.48/26,618.60 = 12,117.57/x
  3. Step 3: Cross multiply
    17,755.48x = 26,618.60 × 12,117.57
  4. Step 4: Simplify right side
    17,755.48x = 322,552,869.79
  5. Step 5: Solve for x
    x = 322,552,869.79/17,755.48
  6. Step 6: Final answer
    x = 18,166.39

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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.