Home / 13,975.27-19,286.81-7,688.05

Finding the Fourth Proportional to 13,975.27, 19,286.81 and 7,688.05

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Solution

The fourth proportional to 13,975.27, 19,286.81 and 7,688.05 is: 10,610.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,975.27 : 19,286.81 = 7,688.05 : x
  2. Step 2: Convert to fraction form
    13,975.27/19,286.81 = 7,688.05/x
  3. Step 3: Cross multiply
    13,975.27x = 19,286.81 × 7,688.05
  4. Step 4: Simplify right side
    13,975.27x = 148,277,901.79
  5. Step 5: Solve for x
    x = 148,277,901.79/13,975.27
  6. Step 6: Final answer
    x = 10,610.02

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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.