Home / 15,923.51-21,974.58-9,958.64

Finding the Fourth Proportional to 15,923.51, 21,974.58 and 9,958.64

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Solution

The fourth proportional to 15,923.51, 21,974.58 and 9,958.64 is: 13,743.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,923.51 : 21,974.58 = 9,958.64 : x
  2. Step 2: Convert to fraction form
    15,923.51/21,974.58 = 9,958.64/x
  3. Step 3: Cross multiply
    15,923.51x = 21,974.58 × 9,958.64
  4. Step 4: Simplify right side
    15,923.51x = 218,836,931.37
  5. Step 5: Solve for x
    x = 218,836,931.37/15,923.51
  6. Step 6: Final answer
    x = 13,743.01

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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.