Home / 9,991.42-14,989.34-2,972.01

Finding the Fourth Proportional to 9,991.42, 14,989.34 and 2,972.01

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Solution

The fourth proportional to 9,991.42, 14,989.34 and 2,972.01 is: 4,458.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,991.42 : 14,989.34 = 2,972.01 : x
  2. Step 2: Convert to fraction form
    9,991.42/14,989.34 = 2,972.01/x
  3. Step 3: Cross multiply
    9,991.42x = 14,989.34 × 2,972.01
  4. Step 4: Simplify right side
    9,991.42x = 44,548,468.37
  5. Step 5: Solve for x
    x = 44,548,468.37/9,991.42
  6. Step 6: Final answer
    x = 4,458.67

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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.