Home / 11,159.11-15,398.94-6,681.84

Finding the Fourth Proportional to 11,159.11, 15,398.94 and 6,681.84

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Solution

The fourth proportional to 11,159.11, 15,398.94 and 6,681.84 is: 9,220.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,159.11 : 15,398.94 = 6,681.84 : x
  2. Step 2: Convert to fraction form
    11,159.11/15,398.94 = 6,681.84/x
  3. Step 3: Cross multiply
    11,159.11x = 15,398.94 × 6,681.84
  4. Step 4: Simplify right side
    11,159.11x = 102,893,253.25
  5. Step 5: Solve for x
    x = 102,893,253.25/11,159.11
  6. Step 6: Final answer
    x = 9,220.56

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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.