Home / 12,155.97-18,233.96-9,386.69

Finding the Fourth Proportional to 12,155.97, 18,233.96 and 9,386.69

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Solution

The fourth proportional to 12,155.97, 18,233.96 and 9,386.69 is: 14,080.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,155.97 : 18,233.96 = 9,386.69 : x
  2. Step 2: Convert to fraction form
    12,155.97/18,233.96 = 9,386.69/x
  3. Step 3: Cross multiply
    12,155.97x = 18,233.96 × 9,386.69
  4. Step 4: Simplify right side
    12,155.97x = 171,156,444.69
  5. Step 5: Solve for x
    x = 171,156,444.69/12,155.97
  6. Step 6: Final answer
    x = 14,080.03

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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.