Home / 18,685.22-25,785.45-10,301.72

Finding the Fourth Proportional to 18,685.22, 25,785.45 and 10,301.72

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Solution

The fourth proportional to 18,685.22, 25,785.45 and 10,301.72 is: 14,216.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,685.22 : 25,785.45 = 10,301.72 : x
  2. Step 2: Convert to fraction form
    18,685.22/25,785.45 = 10,301.72/x
  3. Step 3: Cross multiply
    18,685.22x = 25,785.45 × 10,301.72
  4. Step 4: Simplify right side
    18,685.22x = 265,634,357.05
  5. Step 5: Solve for x
    x = 265,634,357.05/18,685.22
  6. Step 6: Final answer
    x = 14,216.29

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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.