Home / 7,615.35-11,422.73-2,421.03

Finding the Fourth Proportional to 7,615.35, 11,422.73 and 2,421.03

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Solution

The fourth proportional to 7,615.35, 11,422.73 and 2,421.03 is: 3,631.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,615.35 : 11,422.73 = 2,421.03 : x
  2. Step 2: Convert to fraction form
    7,615.35/11,422.73 = 2,421.03/x
  3. Step 3: Cross multiply
    7,615.35x = 11,422.73 × 2,421.03
  4. Step 4: Simplify right side
    7,615.35x = 27,654,759.91
  5. Step 5: Solve for x
    x = 27,654,759.91/7,615.35
  6. Step 6: Final answer
    x = 3,631.45

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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.