Home / 13,810.59-20,704.28-5,040.45

Finding the Fourth Proportional to 13,810.59, 20,704.28 and 5,040.45

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Solution

The fourth proportional to 13,810.59, 20,704.28 and 5,040.45 is: 7,556.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,810.59 : 20,704.28 = 5,040.45 : x
  2. Step 2: Convert to fraction form
    13,810.59/20,704.28 = 5,040.45/x
  3. Step 3: Cross multiply
    13,810.59x = 20,704.28 × 5,040.45
  4. Step 4: Simplify right side
    13,810.59x = 104,358,862.92
  5. Step 5: Solve for x
    x = 104,358,862.92/13,810.59
  6. Step 6: Final answer
    x = 7,556.44

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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.