Home / 8,328.08-12,485.90-5,040.38

Finding the Fourth Proportional to 8,328.08, 12,485.90 and 5,040.38

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Solution

The fourth proportional to 8,328.08, 12,485.90 and 5,040.38 is: 7,556.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,328.08 : 12,485.90 = 5,040.38 : x
  2. Step 2: Convert to fraction form
    8,328.08/12,485.90 = 5,040.38/x
  3. Step 3: Cross multiply
    8,328.08x = 12,485.90 × 5,040.38
  4. Step 4: Simplify right side
    8,328.08x = 62,933,724.46
  5. Step 5: Solve for x
    x = 62,933,724.46/8,328.08
  6. Step 6: Final answer
    x = 7,556.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.