Home / 13,611.42-20,401.25-6,581.52

Finding the Fourth Proportional to 13,611.42, 20,401.25 and 6,581.52

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Solution

The fourth proportional to 13,611.42, 20,401.25 and 6,581.52 is: 9,864.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,611.42 : 20,401.25 = 6,581.52 : x
  2. Step 2: Convert to fraction form
    13,611.42/20,401.25 = 6,581.52/x
  3. Step 3: Cross multiply
    13,611.42x = 20,401.25 × 6,581.52
  4. Step 4: Simplify right side
    13,611.42x = 134,271,201.99
  5. Step 5: Solve for x
    x = 134,271,201.99/13,611.42
  6. Step 6: Final answer
    x = 9,864.60

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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.