Home / 11,394.49-15,724.40-6,290.01

Finding the Fourth Proportional to 11,394.49, 15,724.40 and 6,290.01

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Solution

The fourth proportional to 11,394.49, 15,724.40 and 6,290.01 is: 8,680.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,394.49 : 15,724.40 = 6,290.01 : x
  2. Step 2: Convert to fraction form
    11,394.49/15,724.40 = 6,290.01/x
  3. Step 3: Cross multiply
    11,394.49x = 15,724.40 × 6,290.01
  4. Step 4: Simplify right side
    11,394.49x = 98,906,633.24
  5. Step 5: Solve for x
    x = 98,906,633.24/11,394.49
  6. Step 6: Final answer
    x = 8,680.22

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.