Home / 13,725.27-18,940.37-7,437.51

Finding the Fourth Proportional to 13,725.27, 18,940.37 and 7,437.51

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Solution

The fourth proportional to 13,725.27, 18,940.37 and 7,437.51 is: 10,263.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,725.27 : 18,940.37 = 7,437.51 : x
  2. Step 2: Convert to fraction form
    13,725.27/18,940.37 = 7,437.51/x
  3. Step 3: Cross multiply
    13,725.27x = 18,940.37 × 7,437.51
  4. Step 4: Simplify right side
    13,725.27x = 140,869,154.09
  5. Step 5: Solve for x
    x = 140,869,154.09/13,725.27
  6. Step 6: Final answer
    x = 10,263.49

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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.