Home / 18,611.47-25,684.19-10,113.66

Finding the Fourth Proportional to 18,611.47, 25,684.19 and 10,113.66

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Solution

The fourth proportional to 18,611.47, 25,684.19 and 10,113.66 is: 13,957.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,611.47 : 25,684.19 = 10,113.66 : x
  2. Step 2: Convert to fraction form
    18,611.47/25,684.19 = 10,113.66/x
  3. Step 3: Cross multiply
    18,611.47x = 25,684.19 × 10,113.66
  4. Step 4: Simplify right side
    18,611.47x = 259,761,152.39
  5. Step 5: Solve for x
    x = 259,761,152.39/18,611.47
  6. Step 6: Final answer
    x = 13,957.05

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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.