Home / 12,114.78-18,180.39-6,569.94

Finding the Fourth Proportional to 12,114.78, 18,180.39 and 6,569.94

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Solution

The fourth proportional to 12,114.78, 18,180.39 and 6,569.94 is: 9,859.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,114.78 : 18,180.39 = 6,569.94 : x
  2. Step 2: Convert to fraction form
    12,114.78/18,180.39 = 6,569.94/x
  3. Step 3: Cross multiply
    12,114.78x = 18,180.39 × 6,569.94
  4. Step 4: Simplify right side
    12,114.78x = 119,444,071.48
  5. Step 5: Solve for x
    x = 119,444,071.48/12,114.78
  6. Step 6: Final answer
    x = 9,859.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.