Home / 13,129.08-19,683.59-6,559.87

Finding the Fourth Proportional to 13,129.08, 19,683.59 and 6,559.87

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Solution

The fourth proportional to 13,129.08, 19,683.59 and 6,559.87 is: 9,834.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,129.08 : 19,683.59 = 6,559.87 : x
  2. Step 2: Convert to fraction form
    13,129.08/19,683.59 = 6,559.87/x
  3. Step 3: Cross multiply
    13,129.08x = 19,683.59 × 6,559.87
  4. Step 4: Simplify right side
    13,129.08x = 129,121,791.53
  5. Step 5: Solve for x
    x = 129,121,791.53/13,129.08
  6. Step 6: Final answer
    x = 9,834.79

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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.