Home / 13,485.02-20,214.46-5,158.62

Finding the Fourth Proportional to 13,485.02, 20,214.46 and 5,158.62

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Solution

The fourth proportional to 13,485.02, 20,214.46 and 5,158.62 is: 7,732.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,485.02 : 20,214.46 = 5,158.62 : x
  2. Step 2: Convert to fraction form
    13,485.02/20,214.46 = 5,158.62/x
  3. Step 3: Cross multiply
    13,485.02x = 20,214.46 × 5,158.62
  4. Step 4: Simplify right side
    13,485.02x = 104,278,724.09
  5. Step 5: Solve for x
    x = 104,278,724.09/13,485.02
  6. Step 6: Final answer
    x = 7,732.93

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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.