Home / 13,564.87-20,349.77-5,663.45

Finding the Fourth Proportional to 13,564.87, 20,349.77 and 5,663.45

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Solution

The fourth proportional to 13,564.87, 20,349.77 and 5,663.45 is: 8,496.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,564.87 : 20,349.77 = 5,663.45 : x
  2. Step 2: Convert to fraction form
    13,564.87/20,349.77 = 5,663.45/x
  3. Step 3: Cross multiply
    13,564.87x = 20,349.77 × 5,663.45
  4. Step 4: Simplify right side
    13,564.87x = 115,249,927.46
  5. Step 5: Solve for x
    x = 115,249,927.46/13,564.87
  6. Step 6: Final answer
    x = 8,496.21

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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.