Home / 13,945.04-20,917.08-6,545.36

Finding the Fourth Proportional to 13,945.04, 20,917.08 and 6,545.36

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Solution

The fourth proportional to 13,945.04, 20,917.08 and 6,545.36 is: 9,817.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,945.04 : 20,917.08 = 6,545.36 : x
  2. Step 2: Convert to fraction form
    13,945.04/20,917.08 = 6,545.36/x
  3. Step 3: Cross multiply
    13,945.04x = 20,917.08 × 6,545.36
  4. Step 4: Simplify right side
    13,945.04x = 136,909,818.75
  5. Step 5: Solve for x
    x = 136,909,818.75/13,945.04
  6. Step 6: Final answer
    x = 9,817.81

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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.