Home / 15,744.55-21,727.44-8,670.93

Finding the Fourth Proportional to 15,744.55, 21,727.44 and 8,670.93

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Solution

The fourth proportional to 15,744.55, 21,727.44 and 8,670.93 is: 11,965.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,744.55 : 21,727.44 = 8,670.93 : x
  2. Step 2: Convert to fraction form
    15,744.55/21,727.44 = 8,670.93/x
  3. Step 3: Cross multiply
    15,744.55x = 21,727.44 × 8,670.93
  4. Step 4: Simplify right side
    15,744.55x = 188,397,111.32
  5. Step 5: Solve for x
    x = 188,397,111.32/15,744.55
  6. Step 6: Final answer
    x = 11,965.86

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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.