Home / 13,712.70-18,923.60-7,425.07

Finding the Fourth Proportional to 13,712.70, 18,923.60 and 7,425.07

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Solution

The fourth proportional to 13,712.70, 18,923.60 and 7,425.07 is: 10,246.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,712.70 : 18,923.60 = 7,425.07 : x
  2. Step 2: Convert to fraction form
    13,712.70/18,923.60 = 7,425.07/x
  3. Step 3: Cross multiply
    13,712.70x = 18,923.60 × 7,425.07
  4. Step 4: Simplify right side
    13,712.70x = 140,509,054.65
  5. Step 5: Solve for x
    x = 140,509,054.65/13,712.70
  6. Step 6: Final answer
    x = 10,246.64

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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.