Home / 10,485.10-15,727.20-3,559.60

Finding the Fourth Proportional to 10,485.10, 15,727.20 and 3,559.60

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Solution

The fourth proportional to 10,485.10, 15,727.20 and 3,559.60 is: 5,339.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,485.10 : 15,727.20 = 3,559.60 : x
  2. Step 2: Convert to fraction form
    10,485.10/15,727.20 = 3,559.60/x
  3. Step 3: Cross multiply
    10,485.10x = 15,727.20 × 3,559.60
  4. Step 4: Simplify right side
    10,485.10x = 55,982,541.12
  5. Step 5: Solve for x
    x = 55,982,541.12/10,485.10
  6. Step 6: Final answer
    x = 5,339.25

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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.