Home / 13,975.54-19,286.62-7,688.08

Finding the Fourth Proportional to 13,975.54, 19,286.62 and 7,688.08

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Solution

The fourth proportional to 13,975.54, 19,286.62 and 7,688.08 is: 10,609.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,975.54 : 19,286.62 = 7,688.08 : x
  2. Step 2: Convert to fraction form
    13,975.54/19,286.62 = 7,688.08/x
  3. Step 3: Cross multiply
    13,975.54x = 19,286.62 × 7,688.08
  4. Step 4: Simplify right side
    13,975.54x = 148,277,077.49
  5. Step 5: Solve for x
    x = 148,277,077.49/13,975.54
  6. Step 6: Final answer
    x = 10,609.76

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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.