Home / 11,953.05-17,885.35-7,211.96

Finding the Fourth Proportional to 11,953.05, 17,885.35 and 7,211.96

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Solution

The fourth proportional to 11,953.05, 17,885.35 and 7,211.96 is: 10,791.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,953.05 : 17,885.35 = 7,211.96 : x
  2. Step 2: Convert to fraction form
    11,953.05/17,885.35 = 7,211.96/x
  3. Step 3: Cross multiply
    11,953.05x = 17,885.35 × 7,211.96
  4. Step 4: Simplify right side
    11,953.05x = 128,988,428.79
  5. Step 5: Solve for x
    x = 128,988,428.79/11,953.05
  6. Step 6: Final answer
    x = 10,791.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.