Home / 18,664.07-25,756.42-10,280.57

Finding the Fourth Proportional to 18,664.07, 25,756.42 and 10,280.57

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Solution

The fourth proportional to 18,664.07, 25,756.42 and 10,280.57 is: 14,187.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,664.07 : 25,756.42 = 10,280.57 : x
  2. Step 2: Convert to fraction form
    18,664.07/25,756.42 = 10,280.57/x
  3. Step 3: Cross multiply
    18,664.07x = 25,756.42 × 10,280.57
  4. Step 4: Simplify right side
    18,664.07x = 264,790,653.06
  5. Step 5: Solve for x
    x = 264,790,653.06/18,664.07
  6. Step 6: Final answer
    x = 14,187.19

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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.