Home / 12,009.21-18,001.49-4,611.67

Finding the Fourth Proportional to 12,009.21, 18,001.49 and 4,611.67

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Solution

The fourth proportional to 12,009.21, 18,001.49 and 4,611.67 is: 6,912.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,009.21 : 18,001.49 = 4,611.67 : x
  2. Step 2: Convert to fraction form
    12,009.21/18,001.49 = 4,611.67/x
  3. Step 3: Cross multiply
    12,009.21x = 18,001.49 × 4,611.67
  4. Step 4: Simplify right side
    12,009.21x = 83,016,931.39
  5. Step 5: Solve for x
    x = 83,016,931.39/12,009.21
  6. Step 6: Final answer
    x = 6,912.77

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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.