Home / 15,744.03-21,726.83-8,670.51

Finding the Fourth Proportional to 15,744.03, 21,726.83 and 8,670.51

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Solution

The fourth proportional to 15,744.03, 21,726.83 and 8,670.51 is: 11,965.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,744.03 : 21,726.83 = 8,670.51 : x
  2. Step 2: Convert to fraction form
    15,744.03/21,726.83 = 8,670.51/x
  3. Step 3: Cross multiply
    15,744.03x = 21,726.83 × 8,670.51
  4. Step 4: Simplify right side
    15,744.03x = 188,382,653.43
  5. Step 5: Solve for x
    x = 188,382,653.43/15,744.03
  6. Step 6: Final answer
    x = 11,965.34

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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.