Home / 13,820.26-19,066.89-8,855.14

Finding the Fourth Proportional to 13,820.26, 19,066.89 and 8,855.14

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Solution

The fourth proportional to 13,820.26, 19,066.89 and 8,855.14 is: 12,216.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,820.26 : 19,066.89 = 8,855.14 : x
  2. Step 2: Convert to fraction form
    13,820.26/19,066.89 = 8,855.14/x
  3. Step 3: Cross multiply
    13,820.26x = 19,066.89 × 8,855.14
  4. Step 4: Simplify right side
    13,820.26x = 168,839,980.31
  5. Step 5: Solve for x
    x = 168,839,980.31/13,820.26
  6. Step 6: Final answer
    x = 12,216.85

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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.