Home / 18,455.40-27,684.72-6,768.72

Finding the Fourth Proportional to 18,455.40, 27,684.72 and 6,768.72

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Solution

The fourth proportional to 18,455.40, 27,684.72 and 6,768.72 is: 10,153.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,455.40 : 27,684.72 = 6,768.72 : x
  2. Step 2: Convert to fraction form
    18,455.40/27,684.72 = 6,768.72/x
  3. Step 3: Cross multiply
    18,455.40x = 27,684.72 × 6,768.72
  4. Step 4: Simplify right side
    18,455.40x = 187,390,117.96
  5. Step 5: Solve for x
    x = 187,390,117.96/18,455.40
  6. Step 6: Final answer
    x = 10,153.67

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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.