Home / 13,540.02-20,296.16-5,216.76

Finding the Fourth Proportional to 13,540.02, 20,296.16 and 5,216.76

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Solution

The fourth proportional to 13,540.02, 20,296.16 and 5,216.76 is: 7,819.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,540.02 : 20,296.16 = 5,216.76 : x
  2. Step 2: Convert to fraction form
    13,540.02/20,296.16 = 5,216.76/x
  3. Step 3: Cross multiply
    13,540.02x = 20,296.16 × 5,216.76
  4. Step 4: Simplify right side
    13,540.02x = 105,880,195.64
  5. Step 5: Solve for x
    x = 105,880,195.64/13,540.02
  6. Step 6: Final answer
    x = 7,819.80

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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.