Home / 13,906.51-19,175.61-8,862.74

Finding the Fourth Proportional to 13,906.51, 19,175.61 and 8,862.74

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Solution

The fourth proportional to 13,906.51, 19,175.61 and 8,862.74 is: 12,220.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,906.51 : 19,175.61 = 8,862.74 : x
  2. Step 2: Convert to fraction form
    13,906.51/19,175.61 = 8,862.74/x
  3. Step 3: Cross multiply
    13,906.51x = 19,175.61 × 8,862.74
  4. Step 4: Simplify right side
    13,906.51x = 169,948,445.77
  5. Step 5: Solve for x
    x = 169,948,445.77/13,906.51
  6. Step 6: Final answer
    x = 12,220.78

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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.