Home / 10,040.95-15,054.40-7,231.60

Finding the Fourth Proportional to 10,040.95, 15,054.40 and 7,231.60

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Solution

The fourth proportional to 10,040.95, 15,054.40 and 7,231.60 is: 10,842.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,040.95 : 15,054.40 = 7,231.60 : x
  2. Step 2: Convert to fraction form
    10,040.95/15,054.40 = 7,231.60/x
  3. Step 3: Cross multiply
    10,040.95x = 15,054.40 × 7,231.60
  4. Step 4: Simplify right side
    10,040.95x = 108,867,399.04
  5. Step 5: Solve for x
    x = 108,867,399.04/10,040.95
  6. Step 6: Final answer
    x = 10,842.34

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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.