Home / 18,667.51-28,005.37-13,722.16

Finding the Fourth Proportional to 18,667.51, 28,005.37 and 13,722.16

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Solution

The fourth proportional to 18,667.51, 28,005.37 and 13,722.16 is: 20,586.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,667.51 : 28,005.37 = 13,722.16 : x
  2. Step 2: Convert to fraction form
    18,667.51/28,005.37 = 13,722.16/x
  3. Step 3: Cross multiply
    18,667.51x = 28,005.37 × 13,722.16
  4. Step 4: Simplify right side
    18,667.51x = 384,294,168.00
  5. Step 5: Solve for x
    x = 384,294,168.00/18,667.51
  6. Step 6: Final answer
    x = 20,586.26

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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.