Home / 13,725.06-18,940.67-7,437.44

Finding the Fourth Proportional to 13,725.06, 18,940.67 and 7,437.44

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Solution

The fourth proportional to 13,725.06, 18,940.67 and 7,437.44 is: 10,263.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,725.06 : 18,940.67 = 7,437.44 : x
  2. Step 2: Convert to fraction form
    13,725.06/18,940.67 = 7,437.44/x
  3. Step 3: Cross multiply
    13,725.06x = 18,940.67 × 7,437.44
  4. Step 4: Simplify right side
    13,725.06x = 140,869,964.79
  5. Step 5: Solve for x
    x = 140,869,964.79/13,725.06
  6. Step 6: Final answer
    x = 10,263.70

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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.