Home / 11,326.82-15,630.81-6,290.84

Finding the Fourth Proportional to 11,326.82, 15,630.81 and 6,290.84

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Solution

The fourth proportional to 11,326.82, 15,630.81 and 6,290.84 is: 8,681.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,326.82 : 15,630.81 = 6,290.84 : x
  2. Step 2: Convert to fraction form
    11,326.82/15,630.81 = 6,290.84/x
  3. Step 3: Cross multiply
    11,326.82x = 15,630.81 × 6,290.84
  4. Step 4: Simplify right side
    11,326.82x = 98,330,940.27
  5. Step 5: Solve for x
    x = 98,330,940.27/11,326.82
  6. Step 6: Final answer
    x = 8,681.25

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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.