Home / 11,160.45-15,400.13-6,683.58

Finding the Fourth Proportional to 11,160.45, 15,400.13 and 6,683.58

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Solution

The fourth proportional to 11,160.45, 15,400.13 and 6,683.58 is: 9,222.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,160.45 : 15,400.13 = 6,683.58 : x
  2. Step 2: Convert to fraction form
    11,160.45/15,400.13 = 6,683.58/x
  3. Step 3: Cross multiply
    11,160.45x = 15,400.13 × 6,683.58
  4. Step 4: Simplify right side
    11,160.45x = 102,927,967.45
  5. Step 5: Solve for x
    x = 102,927,967.45/11,160.45
  6. Step 6: Final answer
    x = 9,222.56

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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.