Home / 13,647.09-18,835.23-8,614.05

Finding the Fourth Proportional to 13,647.09, 18,835.23 and 8,614.05

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Solution

The fourth proportional to 13,647.09, 18,835.23 and 8,614.05 is: 11,888.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,647.09 : 18,835.23 = 8,614.05 : x
  2. Step 2: Convert to fraction form
    13,647.09/18,835.23 = 8,614.05/x
  3. Step 3: Cross multiply
    13,647.09x = 18,835.23 × 8,614.05
  4. Step 4: Simplify right side
    13,647.09x = 162,247,612.98
  5. Step 5: Solve for x
    x = 162,247,612.98/13,647.09
  6. Step 6: Final answer
    x = 11,888.81

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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.