Home / 7,536.45-11,305.21-1,989.74

Finding the Fourth Proportional to 7,536.45, 11,305.21 and 1,989.74

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Solution

The fourth proportional to 7,536.45, 11,305.21 and 1,989.74 is: 2,984.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,536.45 : 11,305.21 = 1,989.74 : x
  2. Step 2: Convert to fraction form
    7,536.45/11,305.21 = 1,989.74/x
  3. Step 3: Cross multiply
    7,536.45x = 11,305.21 × 1,989.74
  4. Step 4: Simplify right side
    7,536.45x = 22,494,374.51
  5. Step 5: Solve for x
    x = 22,494,374.51/7,536.45
  6. Step 6: Final answer
    x = 2,984.75

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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.