Home / 10,485.35-15,727.90-4,243.66

Finding the Fourth Proportional to 10,485.35, 15,727.90 and 4,243.66

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Solution

The fourth proportional to 10,485.35, 15,727.90 and 4,243.66 is: 6,365.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,485.35 : 15,727.90 = 4,243.66 : x
  2. Step 2: Convert to fraction form
    10,485.35/15,727.90 = 4,243.66/x
  3. Step 3: Cross multiply
    10,485.35x = 15,727.90 × 4,243.66
  4. Step 4: Simplify right side
    10,485.35x = 66,743,860.11
  5. Step 5: Solve for x
    x = 66,743,860.11/10,485.35
  6. Step 6: Final answer
    x = 6,365.44

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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.