Home / 13,801.41-20,697.66-5,478.93

Finding the Fourth Proportional to 13,801.41, 20,697.66 and 5,478.93

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Solution

The fourth proportional to 13,801.41, 20,697.66 and 5,478.93 is: 8,216.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,801.41 : 20,697.66 = 5,478.93 : x
  2. Step 2: Convert to fraction form
    13,801.41/20,697.66 = 5,478.93/x
  3. Step 3: Cross multiply
    13,801.41x = 20,697.66 × 5,478.93
  4. Step 4: Simplify right side
    13,801.41x = 113,401,030.30
  5. Step 5: Solve for x
    x = 113,401,030.30/13,801.41
  6. Step 6: Final answer
    x = 8,216.63

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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.