Home / 13,667.22-20,501.40-7,089.18

Finding the Fourth Proportional to 13,667.22, 20,501.40 and 7,089.18

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Solution

The fourth proportional to 13,667.22, 20,501.40 and 7,089.18 is: 10,634.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,667.22 : 20,501.40 = 7,089.18 : x
  2. Step 2: Convert to fraction form
    13,667.22/20,501.40 = 7,089.18/x
  3. Step 3: Cross multiply
    13,667.22x = 20,501.40 × 7,089.18
  4. Step 4: Simplify right side
    13,667.22x = 145,338,114.85
  5. Step 5: Solve for x
    x = 145,338,114.85/13,667.22
  6. Step 6: Final answer
    x = 10,634.07

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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.