Home / 18,299.87-25,253.62-9,916.37

Finding the Fourth Proportional to 18,299.87, 25,253.62 and 9,916.37

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Solution

The fourth proportional to 18,299.87, 25,253.62 and 9,916.37 is: 13,684.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,299.87 : 25,253.62 = 9,916.37 : x
  2. Step 2: Convert to fraction form
    18,299.87/25,253.62 = 9,916.37/x
  3. Step 3: Cross multiply
    18,299.87x = 25,253.62 × 9,916.37
  4. Step 4: Simplify right side
    18,299.87x = 250,424,239.76
  5. Step 5: Solve for x
    x = 250,424,239.76/18,299.87
  6. Step 6: Final answer
    x = 13,684.48

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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.