Home / 12,103.47-18,146.75-6,182.19

Finding the Fourth Proportional to 12,103.47, 18,146.75 and 6,182.19

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Solution

The fourth proportional to 12,103.47, 18,146.75 and 6,182.19 is: 9,268.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,103.47 : 18,146.75 = 6,182.19 : x
  2. Step 2: Convert to fraction form
    12,103.47/18,146.75 = 6,182.19/x
  3. Step 3: Cross multiply
    12,103.47x = 18,146.75 × 6,182.19
  4. Step 4: Simplify right side
    12,103.47x = 112,186,625.47
  5. Step 5: Solve for x
    x = 112,186,625.47/12,103.47
  6. Step 6: Final answer
    x = 9,268.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.