Home / 11,275.70-16,916.58-3,880.28

Finding the Fourth Proportional to 11,275.70, 16,916.58 and 3,880.28

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Solution

The fourth proportional to 11,275.70, 16,916.58 and 3,880.28 is: 5,821.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,275.70 : 16,916.58 = 3,880.28 : x
  2. Step 2: Convert to fraction form
    11,275.70/16,916.58 = 3,880.28/x
  3. Step 3: Cross multiply
    11,275.70x = 16,916.58 × 3,880.28
  4. Step 4: Simplify right side
    11,275.70x = 65,641,067.04
  5. Step 5: Solve for x
    x = 65,641,067.04/11,275.70
  6. Step 6: Final answer
    x = 5,821.46

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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.