Home / 8,556.29-12,838.53-4,171.35

Finding the Fourth Proportional to 8,556.29, 12,838.53 and 4,171.35

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Solution

The fourth proportional to 8,556.29, 12,838.53 and 4,171.35 is: 6,259.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,556.29 : 12,838.53 = 4,171.35 : x
  2. Step 2: Convert to fraction form
    8,556.29/12,838.53 = 4,171.35/x
  3. Step 3: Cross multiply
    8,556.29x = 12,838.53 × 4,171.35
  4. Step 4: Simplify right side
    8,556.29x = 53,553,981.26
  5. Step 5: Solve for x
    x = 53,553,981.26/8,556.29
  6. Step 6: Final answer
    x = 6,259.02

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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.