Home / 7,612.61-11,418.89-2,681.69

Finding the Fourth Proportional to 7,612.61, 11,418.89 and 2,681.69

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Solution

The fourth proportional to 7,612.61, 11,418.89 and 2,681.69 is: 4,022.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,612.61 : 11,418.89 = 2,681.69 : x
  2. Step 2: Convert to fraction form
    7,612.61/11,418.89 = 2,681.69/x
  3. Step 3: Cross multiply
    7,612.61x = 11,418.89 × 2,681.69
  4. Step 4: Simplify right side
    7,612.61x = 30,621,852.62
  5. Step 5: Solve for x
    x = 30,621,852.62/7,612.61
  6. Step 6: Final answer
    x = 4,022.52

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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.