Home / 10,485.12-15,727.62-2,693.88

Finding the Fourth Proportional to 10,485.12, 15,727.62 and 2,693.88

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Solution

The fourth proportional to 10,485.12, 15,727.62 and 2,693.88 is: 4,040.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,485.12 : 15,727.62 = 2,693.88 : x
  2. Step 2: Convert to fraction form
    10,485.12/15,727.62 = 2,693.88/x
  3. Step 3: Cross multiply
    10,485.12x = 15,727.62 × 2,693.88
  4. Step 4: Simplify right side
    10,485.12x = 42,368,320.97
  5. Step 5: Solve for x
    x = 42,368,320.97/10,485.12
  6. Step 6: Final answer
    x = 4,040.80

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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.