Home / 13,457.52-20,188.20-6,531.12

Finding the Fourth Proportional to 13,457.52, 20,188.20 and 6,531.12

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Solution

The fourth proportional to 13,457.52, 20,188.20 and 6,531.12 is: 9,797.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,457.52 : 20,188.20 = 6,531.12 : x
  2. Step 2: Convert to fraction form
    13,457.52/20,188.20 = 6,531.12/x
  3. Step 3: Cross multiply
    13,457.52x = 20,188.20 × 6,531.12
  4. Step 4: Simplify right side
    13,457.52x = 131,851,556.78
  5. Step 5: Solve for x
    x = 131,851,556.78/13,457.52
  6. Step 6: Final answer
    x = 9,797.61

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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.