Home / 11,133.72-15,353.01-9,545.85

Finding the Fourth Proportional to 11,133.72, 15,353.01 and 9,545.85

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Solution

The fourth proportional to 11,133.72, 15,353.01 and 9,545.85 is: 13,163.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,133.72 : 15,353.01 = 9,545.85 : x
  2. Step 2: Convert to fraction form
    11,133.72/15,353.01 = 9,545.85/x
  3. Step 3: Cross multiply
    11,133.72x = 15,353.01 × 9,545.85
  4. Step 4: Simplify right side
    11,133.72x = 146,557,530.51
  5. Step 5: Solve for x
    x = 146,557,530.51/11,133.72
  6. Step 6: Final answer
    x = 13,163.39

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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.