Home / 10,629.72-15,939.72-4,384.80

Finding the Fourth Proportional to 10,629.72, 15,939.72 and 4,384.80

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Solution

The fourth proportional to 10,629.72, 15,939.72 and 4,384.80 is: 6,575.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,629.72 : 15,939.72 = 4,384.80 : x
  2. Step 2: Convert to fraction form
    10,629.72/15,939.72 = 4,384.80/x
  3. Step 3: Cross multiply
    10,629.72x = 15,939.72 × 4,384.80
  4. Step 4: Simplify right side
    10,629.72x = 69,892,484.26
  5. Step 5: Solve for x
    x = 69,892,484.26/10,629.72
  6. Step 6: Final answer
    x = 6,575.20

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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.