Home / 16,921.64-23,327.48-11,870.21

Finding the Fourth Proportional to 16,921.64, 23,327.48 and 11,870.21

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Solution

The fourth proportional to 16,921.64, 23,327.48 and 11,870.21 is: 16,363.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,921.64 : 23,327.48 = 11,870.21 : x
  2. Step 2: Convert to fraction form
    16,921.64/23,327.48 = 11,870.21/x
  3. Step 3: Cross multiply
    16,921.64x = 23,327.48 × 11,870.21
  4. Step 4: Simplify right side
    16,921.64x = 276,902,086.37
  5. Step 5: Solve for x
    x = 276,902,086.37/16,921.64
  6. Step 6: Final answer
    x = 16,363.79

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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.