Home / 18,685.24-25,785.64-10,187.36

Finding the Fourth Proportional to 18,685.24, 25,785.64 and 10,187.36

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Solution

The fourth proportional to 18,685.24, 25,785.64 and 10,187.36 is: 14,058.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,685.24 : 25,785.64 = 10,187.36 : x
  2. Step 2: Convert to fraction form
    18,685.24/25,785.64 = 10,187.36/x
  3. Step 3: Cross multiply
    18,685.24x = 25,785.64 × 10,187.36
  4. Step 4: Simplify right side
    18,685.24x = 262,687,597.51
  5. Step 5: Solve for x
    x = 262,687,597.51/18,685.24
  6. Step 6: Final answer
    x = 14,058.56

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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.