Home / 18,962.11-28,443.82-7,114.67

Finding the Fourth Proportional to 18,962.11, 28,443.82 and 7,114.67

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Solution

The fourth proportional to 18,962.11, 28,443.82 and 7,114.67 is: 10,672.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,962.11 : 28,443.82 = 7,114.67 : x
  2. Step 2: Convert to fraction form
    18,962.11/28,443.82 = 7,114.67/x
  3. Step 3: Cross multiply
    18,962.11x = 28,443.82 × 7,114.67
  4. Step 4: Simplify right side
    18,962.11x = 202,368,392.84
  5. Step 5: Solve for x
    x = 202,368,392.84/18,962.11
  6. Step 6: Final answer
    x = 10,672.25

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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.