Home / 18,280.31-25,226.78-9,896.81

Finding the Fourth Proportional to 18,280.31, 25,226.78 and 9,896.81

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Solution

The fourth proportional to 18,280.31, 25,226.78 and 9,896.81 is: 13,657.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,280.31 : 25,226.78 = 9,896.81 : x
  2. Step 2: Convert to fraction form
    18,280.31/25,226.78 = 9,896.81/x
  3. Step 3: Cross multiply
    18,280.31x = 25,226.78 × 9,896.81
  4. Step 4: Simplify right side
    18,280.31x = 249,664,472.95
  5. Step 5: Solve for x
    x = 249,664,472.95/18,280.31
  6. Step 6: Final answer
    x = 13,657.57

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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.