Home / 13,789.56-20,667.06-6,866.04

Finding the Fourth Proportional to 13,789.56, 20,667.06 and 6,866.04

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Solution

The fourth proportional to 13,789.56, 20,667.06 and 6,866.04 is: 10,290.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,789.56 : 20,667.06 = 6,866.04 : x
  2. Step 2: Convert to fraction form
    13,789.56/20,667.06 = 6,866.04/x
  3. Step 3: Cross multiply
    13,789.56x = 20,667.06 × 6,866.04
  4. Step 4: Simplify right side
    13,789.56x = 141,900,860.64
  5. Step 5: Solve for x
    x = 141,900,860.64/13,789.56
  6. Step 6: Final answer
    x = 10,290.46

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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.