Home / 11,500.21-15,870.22-6,723.37

Finding the Fourth Proportional to 11,500.21, 15,870.22 and 6,723.37

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Solution

The fourth proportional to 11,500.21, 15,870.22 and 6,723.37 is: 9,278.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,500.21 : 15,870.22 = 6,723.37 : x
  2. Step 2: Convert to fraction form
    11,500.21/15,870.22 = 6,723.37/x
  3. Step 3: Cross multiply
    11,500.21x = 15,870.22 × 6,723.37
  4. Step 4: Simplify right side
    11,500.21x = 106,701,361.04
  5. Step 5: Solve for x
    x = 106,701,361.04/11,500.21
  6. Step 6: Final answer
    x = 9,278.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.