Home / 8,722.08-12,036.20-4,743.09

Finding the Fourth Proportional to 8,722.08, 12,036.20 and 4,743.09

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Solution

The fourth proportional to 8,722.08, 12,036.20 and 4,743.09 is: 6,545.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,722.08 : 12,036.20 = 4,743.09 : x
  2. Step 2: Convert to fraction form
    8,722.08/12,036.20 = 4,743.09/x
  3. Step 3: Cross multiply
    8,722.08x = 12,036.20 × 4,743.09
  4. Step 4: Simplify right side
    8,722.08x = 57,088,756.14
  5. Step 5: Solve for x
    x = 57,088,756.14/8,722.08
  6. Step 6: Final answer
    x = 6,545.31

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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.