Home / 13,536.36-18,683.19-8,230.05

Finding the Fourth Proportional to 13,536.36, 18,683.19 and 8,230.05

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Solution

The fourth proportional to 13,536.36, 18,683.19 and 8,230.05 is: 11,359.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,536.36 : 18,683.19 = 8,230.05 : x
  2. Step 2: Convert to fraction form
    13,536.36/18,683.19 = 8,230.05/x
  3. Step 3: Cross multiply
    13,536.36x = 18,683.19 × 8,230.05
  4. Step 4: Simplify right side
    13,536.36x = 153,763,587.86
  5. Step 5: Solve for x
    x = 153,763,587.86/13,536.36
  6. Step 6: Final answer
    x = 11,359.30

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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.