Home / 13,540.02-20,313.30-4,775.82

Finding the Fourth Proportional to 13,540.02, 20,313.30 and 4,775.82

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Solution

The fourth proportional to 13,540.02, 20,313.30 and 4,775.82 is: 7,164.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,540.02 : 20,313.30 = 4,775.82 : x
  2. Step 2: Convert to fraction form
    13,540.02/20,313.30 = 4,775.82/x
  3. Step 3: Cross multiply
    13,540.02x = 20,313.30 × 4,775.82
  4. Step 4: Simplify right side
    13,540.02x = 97,012,664.41
  5. Step 5: Solve for x
    x = 97,012,664.41/13,540.02
  6. Step 6: Final answer
    x = 7,164.88

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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.