Home / 18,966.15-28,450.17-6,485.67

Finding the Fourth Proportional to 18,966.15, 28,450.17 and 6,485.67

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Solution

The fourth proportional to 18,966.15, 28,450.17 and 6,485.67 is: 9,728.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,966.15 : 28,450.17 = 6,485.67 : x
  2. Step 2: Convert to fraction form
    18,966.15/28,450.17 = 6,485.67/x
  3. Step 3: Cross multiply
    18,966.15x = 28,450.17 × 6,485.67
  4. Step 4: Simplify right side
    18,966.15x = 184,518,414.06
  5. Step 5: Solve for x
    x = 184,518,414.06/18,966.15
  6. Step 6: Final answer
    x = 9,728.83

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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.