Home / 13,601.47-20,397.01-5,280.41

Finding the Fourth Proportional to 13,601.47, 20,397.01 and 5,280.41

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Solution

The fourth proportional to 13,601.47, 20,397.01 and 5,280.41 is: 7,918.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,601.47 : 20,397.01 = 5,280.41 : x
  2. Step 2: Convert to fraction form
    13,601.47/20,397.01 = 5,280.41/x
  3. Step 3: Cross multiply
    13,601.47x = 20,397.01 × 5,280.41
  4. Step 4: Simplify right side
    13,601.47x = 107,704,575.57
  5. Step 5: Solve for x
    x = 107,704,575.57/13,601.47
  6. Step 6: Final answer
    x = 7,918.60

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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.