Home / 15,722.72-23,587.92-6,491.36

Finding the Fourth Proportional to 15,722.72, 23,587.92 and 6,491.36

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Solution

The fourth proportional to 15,722.72, 23,587.92 and 6,491.36 is: 9,738.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,722.72 : 23,587.92 = 6,491.36 : x
  2. Step 2: Convert to fraction form
    15,722.72/23,587.92 = 6,491.36/x
  3. Step 3: Cross multiply
    15,722.72x = 23,587.92 × 6,491.36
  4. Step 4: Simplify right side
    15,722.72x = 153,117,680.37
  5. Step 5: Solve for x
    x = 153,117,680.37/15,722.72
  6. Step 6: Final answer
    x = 9,738.63

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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.