Home / 16,785.18-23,163.06-9,231.51

Finding the Fourth Proportional to 16,785.18, 23,163.06 and 9,231.51

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Solution

The fourth proportional to 16,785.18, 23,163.06 and 9,231.51 is: 12,739.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,785.18 : 23,163.06 = 9,231.51 : x
  2. Step 2: Convert to fraction form
    16,785.18/23,163.06 = 9,231.51/x
  3. Step 3: Cross multiply
    16,785.18x = 23,163.06 × 9,231.51
  4. Step 4: Simplify right side
    16,785.18x = 213,830,020.02
  5. Step 5: Solve for x
    x = 213,830,020.02/16,785.18
  6. Step 6: Final answer
    x = 12,739.22

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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.