Home / 13,316.15-18,365.89-8,536.54

Finding the Fourth Proportional to 13,316.15, 18,365.89 and 8,536.54

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Solution

The fourth proportional to 13,316.15, 18,365.89 and 8,536.54 is: 11,773.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,316.15 : 18,365.89 = 8,536.54 : x
  2. Step 2: Convert to fraction form
    13,316.15/18,365.89 = 8,536.54/x
  3. Step 3: Cross multiply
    13,316.15x = 18,365.89 × 8,536.54
  4. Step 4: Simplify right side
    13,316.15x = 156,781,137.81
  5. Step 5: Solve for x
    x = 156,781,137.81/13,316.15
  6. Step 6: Final answer
    x = 11,773.76

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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.