Home / 13,884.86-19,161.10-7,916.52

Finding the Fourth Proportional to 13,884.86, 19,161.10 and 7,916.52

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Solution

The fourth proportional to 13,884.86, 19,161.10 and 7,916.52 is: 10,924.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,884.86 : 19,161.10 = 7,916.52 : x
  2. Step 2: Convert to fraction form
    13,884.86/19,161.10 = 7,916.52/x
  3. Step 3: Cross multiply
    13,884.86x = 19,161.10 × 7,916.52
  4. Step 4: Simplify right side
    13,884.86x = 151,689,231.37
  5. Step 5: Solve for x
    x = 151,689,231.37/13,884.86
  6. Step 6: Final answer
    x = 10,924.79

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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.