Home / 12,349.72-18,521.70-3,582.28

Finding the Fourth Proportional to 12,349.72, 18,521.70 and 3,582.28

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Solution

The fourth proportional to 12,349.72, 18,521.70 and 3,582.28 is: 5,372.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,349.72 : 18,521.70 = 3,582.28 : x
  2. Step 2: Convert to fraction form
    12,349.72/18,521.70 = 3,582.28/x
  3. Step 3: Cross multiply
    12,349.72x = 18,521.70 × 3,582.28
  4. Step 4: Simplify right side
    12,349.72x = 66,349,915.48
  5. Step 5: Solve for x
    x = 66,349,915.48/12,349.72
  6. Step 6: Final answer
    x = 5,372.58

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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.