Home / 18,640.37-25,725.53-13,916.45

Finding the Fourth Proportional to 18,640.37, 25,725.53 and 13,916.45

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Solution

The fourth proportional to 18,640.37, 25,725.53 and 13,916.45 is: 19,206.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,640.37 : 25,725.53 = 13,916.45 : x
  2. Step 2: Convert to fraction form
    18,640.37/25,725.53 = 13,916.45/x
  3. Step 3: Cross multiply
    18,640.37x = 25,725.53 × 13,916.45
  4. Step 4: Simplify right side
    18,640.37x = 358,008,051.97
  5. Step 5: Solve for x
    x = 358,008,051.97/18,640.37
  6. Step 6: Final answer
    x = 19,206.06

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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.