Home / 7,615.90-11,416.56-3,718.18

Finding the Fourth Proportional to 7,615.90, 11,416.56 and 3,718.18

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Solution

The fourth proportional to 7,615.90, 11,416.56 and 3,718.18 is: 5,573.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,615.90 : 11,416.56 = 3,718.18 : x
  2. Step 2: Convert to fraction form
    7,615.90/11,416.56 = 3,718.18/x
  3. Step 3: Cross multiply
    7,615.90x = 11,416.56 × 3,718.18
  4. Step 4: Simplify right side
    7,615.90x = 42,448,825.06
  5. Step 5: Solve for x
    x = 42,448,825.06/7,615.90
  6. Step 6: Final answer
    x = 5,573.71

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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.