Home / 9,369.08-12,928.68-5,177

Finding the Fourth Proportional to 9,369.08, 12,928.68 and 5,177

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Solution

The fourth proportional to 9,369.08, 12,928.68 and 5,177 is: 7,143.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,369.08 : 12,928.68 = 5,177 : x
  2. Step 2: Convert to fraction form
    9,369.08/12,928.68 = 5,177/x
  3. Step 3: Cross multiply
    9,369.08x = 12,928.68 × 5,177
  4. Step 4: Simplify right side
    9,369.08x = 66,931,776.36
  5. Step 5: Solve for x
    x = 66,931,776.36/9,369.08
  6. Step 6: Final answer
    x = 7,143.90

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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.