Home / 17,981.36-26,950.85-8,109.08

Finding the Fourth Proportional to 17,981.36, 26,950.85 and 8,109.08

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Solution

The fourth proportional to 17,981.36, 26,950.85 and 8,109.08 is: 12,154.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,981.36 : 26,950.85 = 8,109.08 : x
  2. Step 2: Convert to fraction form
    17,981.36/26,950.85 = 8,109.08/x
  3. Step 3: Cross multiply
    17,981.36x = 26,950.85 × 8,109.08
  4. Step 4: Simplify right side
    17,981.36x = 218,546,423.42
  5. Step 5: Solve for x
    x = 218,546,423.42/17,981.36
  6. Step 6: Final answer
    x = 12,154.06

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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.