Home / 7,615.16-11,422.69-3,918.42

Finding the Fourth Proportional to 7,615.16, 11,422.69 and 3,918.42

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Solution

The fourth proportional to 7,615.16, 11,422.69 and 3,918.42 is: 5,877.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,615.16 : 11,422.69 = 3,918.42 : x
  2. Step 2: Convert to fraction form
    7,615.16/11,422.69 = 3,918.42/x
  3. Step 3: Cross multiply
    7,615.16x = 11,422.69 × 3,918.42
  4. Step 4: Simplify right side
    7,615.16x = 44,758,896.95
  5. Step 5: Solve for x
    x = 44,758,896.95/7,615.16
  6. Step 6: Final answer
    x = 5,877.60

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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.