Home / 13,525.76-20,287.20-6,408.28

Finding the Fourth Proportional to 13,525.76, 20,287.20 and 6,408.28

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Solution

The fourth proportional to 13,525.76, 20,287.20 and 6,408.28 is: 9,611.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,525.76 : 20,287.20 = 6,408.28 : x
  2. Step 2: Convert to fraction form
    13,525.76/20,287.20 = 6,408.28/x
  3. Step 3: Cross multiply
    13,525.76x = 20,287.20 × 6,408.28
  4. Step 4: Simplify right side
    13,525.76x = 130,006,058.02
  5. Step 5: Solve for x
    x = 130,006,058.02/13,525.76
  6. Step 6: Final answer
    x = 9,611.74

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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.