Home / 13,983.57-20,975.18-5,663.52

Finding the Fourth Proportional to 13,983.57, 20,975.18 and 5,663.52

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Solution

The fourth proportional to 13,983.57, 20,975.18 and 5,663.52 is: 8,495.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,983.57 : 20,975.18 = 5,663.52 : x
  2. Step 2: Convert to fraction form
    13,983.57/20,975.18 = 5,663.52/x
  3. Step 3: Cross multiply
    13,983.57x = 20,975.18 × 5,663.52
  4. Step 4: Simplify right side
    13,983.57x = 118,793,323.12
  5. Step 5: Solve for x
    x = 118,793,323.12/13,983.57
  6. Step 6: Final answer
    x = 8,495.21

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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.