Home / 15,702.62-21,669.18-8,629.04

Finding the Fourth Proportional to 15,702.62, 21,669.18 and 8,629.04

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Solution

The fourth proportional to 15,702.62, 21,669.18 and 8,629.04 is: 11,907.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,702.62 : 21,669.18 = 8,629.04 : x
  2. Step 2: Convert to fraction form
    15,702.62/21,669.18 = 8,629.04/x
  3. Step 3: Cross multiply
    15,702.62x = 21,669.18 × 8,629.04
  4. Step 4: Simplify right side
    15,702.62x = 186,984,220.99
  5. Step 5: Solve for x
    x = 186,984,220.99/15,702.62
  6. Step 6: Final answer
    x = 11,907.84

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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.