Home / 13,788.86-20,683.89-5,022.63

Finding the Fourth Proportional to 13,788.86, 20,683.89 and 5,022.63

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Solution

The fourth proportional to 13,788.86, 20,683.89 and 5,022.63 is: 7,534.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,788.86 : 20,683.89 = 5,022.63 : x
  2. Step 2: Convert to fraction form
    13,788.86/20,683.89 = 5,022.63/x
  3. Step 3: Cross multiply
    13,788.86x = 20,683.89 × 5,022.63
  4. Step 4: Simplify right side
    13,788.86x = 103,887,526.43
  5. Step 5: Solve for x
    x = 103,887,526.43/13,788.86
  6. Step 6: Final answer
    x = 7,534.17

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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.