Home / 8,945.71-13,390.62-6,156.07

Finding the Fourth Proportional to 8,945.71, 13,390.62 and 6,156.07

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Solution

The fourth proportional to 8,945.71, 13,390.62 and 6,156.07 is: 9,214.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,945.71 : 13,390.62 = 6,156.07 : x
  2. Step 2: Convert to fraction form
    8,945.71/13,390.62 = 6,156.07/x
  3. Step 3: Cross multiply
    8,945.71x = 13,390.62 × 6,156.07
  4. Step 4: Simplify right side
    8,945.71x = 82,433,594.06
  5. Step 5: Solve for x
    x = 82,433,594.06/8,945.71
  6. Step 6: Final answer
    x = 9,214.87

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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.