Home / 15,840.66-21,860.64-9,467.04

Finding the Fourth Proportional to 15,840.66, 21,860.64 and 9,467.04

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Solution

The fourth proportional to 15,840.66, 21,860.64 and 9,467.04 is: 13,064.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,840.66 : 21,860.64 = 9,467.04 : x
  2. Step 2: Convert to fraction form
    15,840.66/21,860.64 = 9,467.04/x
  3. Step 3: Cross multiply
    15,840.66x = 21,860.64 × 9,467.04
  4. Step 4: Simplify right side
    15,840.66x = 206,955,553.31
  5. Step 5: Solve for x
    x = 206,955,553.31/15,840.66
  6. Step 6: Final answer
    x = 13,064.83

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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.