Home / 13,085.00-19,621.50-7,163.90

Finding the Fourth Proportional to 13,085.00, 19,621.50 and 7,163.90

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Solution

The fourth proportional to 13,085.00, 19,621.50 and 7,163.90 is: 10,742.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,085.00 : 19,621.50 = 7,163.90 : x
  2. Step 2: Convert to fraction form
    13,085.00/19,621.50 = 7,163.90/x
  3. Step 3: Cross multiply
    13,085.00x = 19,621.50 × 7,163.90
  4. Step 4: Simplify right side
    13,085.00x = 140,566,365.74
  5. Step 5: Solve for x
    x = 140,566,365.74/13,085.00
  6. Step 6: Final answer
    x = 10,742.56

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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.