Home / 13,566.68-20,355.87-7,325.45

Finding the Fourth Proportional to 13,566.68, 20,355.87 and 7,325.45

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Solution

The fourth proportional to 13,566.68, 20,355.87 and 7,325.45 is: 10,991.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,566.68 : 20,355.87 = 7,325.45 : x
  2. Step 2: Convert to fraction form
    13,566.68/20,355.87 = 7,325.45/x
  3. Step 3: Cross multiply
    13,566.68x = 20,355.87 × 7,325.45
  4. Step 4: Simplify right side
    13,566.68x = 149,115,806.11
  5. Step 5: Solve for x
    x = 149,115,806.11/13,566.68
  6. Step 6: Final answer
    x = 10,991.33

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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.