Home / 18,240.19-25,163.56-10,686.84

Finding the Fourth Proportional to 18,240.19, 25,163.56 and 10,686.84

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Solution

The fourth proportional to 18,240.19, 25,163.56 and 10,686.84 is: 14,743.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,240.19 : 25,163.56 = 10,686.84 : x
  2. Step 2: Convert to fraction form
    18,240.19/25,163.56 = 10,686.84/x
  3. Step 3: Cross multiply
    18,240.19x = 25,163.56 × 10,686.84
  4. Step 4: Simplify right side
    18,240.19x = 268,918,858.55
  5. Step 5: Solve for x
    x = 268,918,858.55/18,240.19
  6. Step 6: Final answer
    x = 14,743.21

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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.