Home / 13,977.39-20,959.94-7,402.04

Finding the Fourth Proportional to 13,977.39, 20,959.94 and 7,402.04

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Solution

The fourth proportional to 13,977.39, 20,959.94 and 7,402.04 is: 11,099.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,977.39 : 20,959.94 = 7,402.04 : x
  2. Step 2: Convert to fraction form
    13,977.39/20,959.94 = 7,402.04/x
  3. Step 3: Cross multiply
    13,977.39x = 20,959.94 × 7,402.04
  4. Step 4: Simplify right side
    13,977.39x = 155,146,172.47
  5. Step 5: Solve for x
    x = 155,146,172.47/13,977.39
  6. Step 6: Final answer
    x = 11,099.80

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1.5x scale

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.