Home / 13,118.34-19,670.22-5,318.04

Finding the Fourth Proportional to 13,118.34, 19,670.22 and 5,318.04

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Solution

The fourth proportional to 13,118.34, 19,670.22 and 5,318.04 is: 7,974.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,118.34 : 19,670.22 = 5,318.04 : x
  2. Step 2: Convert to fraction form
    13,118.34/19,670.22 = 5,318.04/x
  3. Step 3: Cross multiply
    13,118.34x = 19,670.22 × 5,318.04
  4. Step 4: Simplify right side
    13,118.34x = 104,607,016.77
  5. Step 5: Solve for x
    x = 104,607,016.77/13,118.34
  6. Step 6: Final answer
    x = 7,974.10

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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.