Home / 15,553.80-21,464.04-8,480.16

Finding the Fourth Proportional to 15,553.80, 21,464.04 and 8,480.16

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Solution

The fourth proportional to 15,553.80, 21,464.04 and 8,480.16 is: 11,702.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,553.80 : 21,464.04 = 8,480.16 : x
  2. Step 2: Convert to fraction form
    15,553.80/21,464.04 = 8,480.16/x
  3. Step 3: Cross multiply
    15,553.80x = 21,464.04 × 8,480.16
  4. Step 4: Simplify right side
    15,553.80x = 182,018,493.45
  5. Step 5: Solve for x
    x = 182,018,493.45/15,553.80
  6. Step 6: Final answer
    x = 11,702.51

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1.5x scale

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.