Home / 13,570.62-20,353.77-5,777.34

Finding the Fourth Proportional to 13,570.62, 20,353.77 and 5,777.34

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Solution

The fourth proportional to 13,570.62, 20,353.77 and 5,777.34 is: 8,665.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,570.62 : 20,353.77 = 5,777.34 : x
  2. Step 2: Convert to fraction form
    13,570.62/20,353.77 = 5,777.34/x
  3. Step 3: Cross multiply
    13,570.62x = 20,353.77 × 5,777.34
  4. Step 4: Simplify right side
    13,570.62x = 117,590,649.57
  5. Step 5: Solve for x
    x = 117,590,649.57/13,570.62
  6. Step 6: Final answer
    x = 8,665.09

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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.