Home / 6,372.45-9,558.63-1,989.90

Finding the Fourth Proportional to 6,372.45, 9,558.63 and 1,989.90

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Solution

The fourth proportional to 6,372.45, 9,558.63 and 1,989.90 is: 2,984.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,372.45 : 9,558.63 = 1,989.90 : x
  2. Step 2: Convert to fraction form
    6,372.45/9,558.63 = 1,989.90/x
  3. Step 3: Cross multiply
    6,372.45x = 9,558.63 × 1,989.90
  4. Step 4: Simplify right side
    6,372.45x = 19,020,717.84
  5. Step 5: Solve for x
    x = 19,020,717.84/6,372.45
  6. Step 6: Final answer
    x = 2,984.84

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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.