Home / 14,388.72-21,585.90-5,623.08

Finding the Fourth Proportional to 14,388.72, 21,585.90 and 5,623.08

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Solution

The fourth proportional to 14,388.72, 21,585.90 and 5,623.08 is: 8,435.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,388.72 : 21,585.90 = 5,623.08 : x
  2. Step 2: Convert to fraction form
    14,388.72/21,585.90 = 5,623.08/x
  3. Step 3: Cross multiply
    14,388.72x = 21,585.90 × 5,623.08
  4. Step 4: Simplify right side
    14,388.72x = 121,379,242.57
  5. Step 5: Solve for x
    x = 121,379,242.57/14,388.72
  6. Step 6: Final answer
    x = 8,435.72

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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.