Home / 19,866.42-29,812.18-11,107.08

Finding the Fourth Proportional to 19,866.42, 29,812.18 and 11,107.08

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Solution

The fourth proportional to 19,866.42, 29,812.18 and 11,107.08 is: 16,667.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,866.42 : 29,812.18 = 11,107.08 : x
  2. Step 2: Convert to fraction form
    19,866.42/29,812.18 = 11,107.08/x
  3. Step 3: Cross multiply
    19,866.42x = 29,812.18 × 11,107.08
  4. Step 4: Simplify right side
    19,866.42x = 331,126,268.23
  5. Step 5: Solve for x
    x = 331,126,268.23/19,866.42
  6. Step 6: Final answer
    x = 16,667.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.