Home / 21,373.40-29,494.37-11,812.79

Finding the Fourth Proportional to 21,373.40, 29,494.37 and 11,812.79

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Solution

The fourth proportional to 21,373.40, 29,494.37 and 11,812.79 is: 16,301.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,373.40 : 29,494.37 = 11,812.79 : x
  2. Step 2: Convert to fraction form
    21,373.40/29,494.37 = 11,812.79/x
  3. Step 3: Cross multiply
    21,373.40x = 29,494.37 × 11,812.79
  4. Step 4: Simplify right side
    21,373.40x = 348,410,758.43
  5. Step 5: Solve for x
    x = 348,410,758.43/21,373.40
  6. Step 6: Final answer
    x = 16,301.14

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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.