Home / 11,394.74-15,724.75-6,290.26

Finding the Fourth Proportional to 11,394.74, 15,724.75 and 6,290.26

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Solution

The fourth proportional to 11,394.74, 15,724.75 and 6,290.26 is: 8,680.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,394.74 : 15,724.75 = 6,290.26 : x
  2. Step 2: Convert to fraction form
    11,394.74/15,724.75 = 6,290.26/x
  3. Step 3: Cross multiply
    11,394.74x = 15,724.75 × 6,290.26
  4. Step 4: Simplify right side
    11,394.74x = 98,912,710.90
  5. Step 5: Solve for x
    x = 98,912,710.90/11,394.74
  6. Step 6: Final answer
    x = 8,680.56

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1.5x scale

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.