Home / 9,905.90-13,669.56-5,926.97

Finding the Fourth Proportional to 9,905.90, 13,669.56 and 5,926.97

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Solution

The fourth proportional to 9,905.90, 13,669.56 and 5,926.97 is: 8,178.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,905.90 : 13,669.56 = 5,926.97 : x
  2. Step 2: Convert to fraction form
    9,905.90/13,669.56 = 5,926.97/x
  3. Step 3: Cross multiply
    9,905.90x = 13,669.56 × 5,926.97
  4. Step 4: Simplify right side
    9,905.90x = 81,019,106.21
  5. Step 5: Solve for x
    x = 81,019,106.21/9,905.90
  6. Step 6: Final answer
    x = 8,178.88

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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.