Home / 13,176.06-18,181.17-7,869.75

Finding the Fourth Proportional to 13,176.06, 18,181.17 and 7,869.75

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Solution

The fourth proportional to 13,176.06, 18,181.17 and 7,869.75 is: 10,859.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,176.06 : 18,181.17 = 7,869.75 : x
  2. Step 2: Convert to fraction form
    13,176.06/18,181.17 = 7,869.75/x
  3. Step 3: Cross multiply
    13,176.06x = 18,181.17 × 7,869.75
  4. Step 4: Simplify right side
    13,176.06x = 143,081,262.61
  5. Step 5: Solve for x
    x = 143,081,262.61/13,176.06
  6. Step 6: Final answer
    x = 10,859.18

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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.