Home / 13,805.10-19,051.81-8,143.18

Finding the Fourth Proportional to 13,805.10, 19,051.81 and 8,143.18

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Solution

The fourth proportional to 13,805.10, 19,051.81 and 8,143.18 is: 11,238.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,805.10 : 19,051.81 = 8,143.18 : x
  2. Step 2: Convert to fraction form
    13,805.10/19,051.81 = 8,143.18/x
  3. Step 3: Cross multiply
    13,805.10x = 19,051.81 × 8,143.18
  4. Step 4: Simplify right side
    13,805.10x = 155,142,250.17
  5. Step 5: Solve for x
    x = 155,142,250.17/13,805.10
  6. Step 6: Final answer
    x = 11,238.04

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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.