Home / 11,880.61-16,395.81-6,845.62

Finding the Fourth Proportional to 11,880.61, 16,395.81 and 6,845.62

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Solution

The fourth proportional to 11,880.61, 16,395.81 and 6,845.62 is: 9,447.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,880.61 : 16,395.81 = 6,845.62 : x
  2. Step 2: Convert to fraction form
    11,880.61/16,395.81 = 6,845.62/x
  3. Step 3: Cross multiply
    11,880.61x = 16,395.81 × 6,845.62
  4. Step 4: Simplify right side
    11,880.61x = 112,239,484.85
  5. Step 5: Solve for x
    x = 112,239,484.85/11,880.61
  6. Step 6: Final answer
    x = 9,447.28

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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.