Home / 11,365.14-15,688.18-6,650.94

Finding the Fourth Proportional to 11,365.14, 15,688.18 and 6,650.94

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Solution

The fourth proportional to 11,365.14, 15,688.18 and 6,650.94 is: 9,180.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,365.14 : 15,688.18 = 6,650.94 : x
  2. Step 2: Convert to fraction form
    11,365.14/15,688.18 = 6,650.94/x
  3. Step 3: Cross multiply
    11,365.14x = 15,688.18 × 6,650.94
  4. Step 4: Simplify right side
    11,365.14x = 104,341,143.89
  5. Step 5: Solve for x
    x = 104,341,143.89/11,365.14
  6. Step 6: Final answer
    x = 9,180.81

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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.