Home / 11,916.87-16,445.72-7,200.24

Finding the Fourth Proportional to 11,916.87, 16,445.72 and 7,200.24

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Solution

The fourth proportional to 11,916.87, 16,445.72 and 7,200.24 is: 9,936.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,916.87 : 16,445.72 = 7,200.24 : x
  2. Step 2: Convert to fraction form
    11,916.87/16,445.72 = 7,200.24/x
  3. Step 3: Cross multiply
    11,916.87x = 16,445.72 × 7,200.24
  4. Step 4: Simplify right side
    11,916.87x = 118,413,130.97
  5. Step 5: Solve for x
    x = 118,413,130.97/11,916.87
  6. Step 6: Final answer
    x = 9,936.60

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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.