Home / 18,955.13-26,149.62-10,992.74

Finding the Fourth Proportional to 18,955.13, 26,149.62 and 10,992.74

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Solution

The fourth proportional to 18,955.13, 26,149.62 and 10,992.74 is: 15,165.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,955.13 : 26,149.62 = 10,992.74 : x
  2. Step 2: Convert to fraction form
    18,955.13/26,149.62 = 10,992.74/x
  3. Step 3: Cross multiply
    18,955.13x = 26,149.62 × 10,992.74
  4. Step 4: Simplify right side
    18,955.13x = 287,455,880.90
  5. Step 5: Solve for x
    x = 287,455,880.90/18,955.13
  6. Step 6: Final answer
    x = 15,165.07

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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.