Home / 15,553.65-21,464.37-8,480.12

Finding the Fourth Proportional to 15,553.65, 21,464.37 and 8,480.12

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Solution

The fourth proportional to 15,553.65, 21,464.37 and 8,480.12 is: 11,702.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,553.65 : 21,464.37 = 8,480.12 : x
  2. Step 2: Convert to fraction form
    15,553.65/21,464.37 = 8,480.12/x
  3. Step 3: Cross multiply
    15,553.65x = 21,464.37 × 8,480.12
  4. Step 4: Simplify right side
    15,553.65x = 182,020,433.32
  5. Step 5: Solve for x
    x = 182,020,433.32/15,553.65
  6. Step 6: Final answer
    x = 11,702.75

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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.