Home / 11,398.60-15,723.75-6,681.97

Finding the Fourth Proportional to 11,398.60, 15,723.75 and 6,681.97

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Solution

The fourth proportional to 11,398.60, 15,723.75 and 6,681.97 is: 9,217.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,398.60 : 15,723.75 = 6,681.97 : x
  2. Step 2: Convert to fraction form
    11,398.60/15,723.75 = 6,681.97/x
  3. Step 3: Cross multiply
    11,398.60x = 15,723.75 × 6,681.97
  4. Step 4: Simplify right side
    11,398.60x = 105,065,625.79
  5. Step 5: Solve for x
    x = 105,065,625.79/11,398.60
  6. Step 6: Final answer
    x = 9,217.41

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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.