Home / 13,395.24-18,485.42-8,089.07

Finding the Fourth Proportional to 13,395.24, 18,485.42 and 8,089.07

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Solution

The fourth proportional to 13,395.24, 18,485.42 and 8,089.07 is: 11,162.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,395.24 : 18,485.42 = 8,089.07 : x
  2. Step 2: Convert to fraction form
    13,395.24/18,485.42 = 8,089.07/x
  3. Step 3: Cross multiply
    13,395.24x = 18,485.42 × 8,089.07
  4. Step 4: Simplify right side
    13,395.24x = 149,529,723.49
  5. Step 5: Solve for x
    x = 149,529,723.49/13,395.24
  6. Step 6: Final answer
    x = 11,162.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.