Home / 8,290.15-11,438.62-5,102.60

Finding the Fourth Proportional to 8,290.15, 11,438.62 and 5,102.60

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Solution

The fourth proportional to 8,290.15, 11,438.62 and 5,102.60 is: 7,040.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,290.15 : 11,438.62 = 5,102.60 : x
  2. Step 2: Convert to fraction form
    8,290.15/11,438.62 = 5,102.60/x
  3. Step 3: Cross multiply
    8,290.15x = 11,438.62 × 5,102.60
  4. Step 4: Simplify right side
    8,290.15x = 58,366,632.46
  5. Step 5: Solve for x
    x = 58,366,632.46/8,290.15
  6. Step 6: Final answer
    x = 7,040.48

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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.