Home / 13,539.02-20,304.81-5,219.37

Finding the Fourth Proportional to 13,539.02, 20,304.81 and 5,219.37

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Solution

The fourth proportional to 13,539.02, 20,304.81 and 5,219.37 is: 7,827.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,539.02 : 20,304.81 = 5,219.37 : x
  2. Step 2: Convert to fraction form
    13,539.02/20,304.81 = 5,219.37/x
  3. Step 3: Cross multiply
    13,539.02x = 20,304.81 × 5,219.37
  4. Step 4: Simplify right side
    13,539.02x = 105,978,316.17
  5. Step 5: Solve for x
    x = 105,978,316.17/13,539.02
  6. Step 6: Final answer
    x = 7,827.62

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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.