Home / 8,715.16-13,077.87-3,450.67

Finding the Fourth Proportional to 8,715.16, 13,077.87 and 3,450.67

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Solution

The fourth proportional to 8,715.16, 13,077.87 and 3,450.67 is: 5,178.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,715.16 : 13,077.87 = 3,450.67 : x
  2. Step 2: Convert to fraction form
    8,715.16/13,077.87 = 3,450.67/x
  3. Step 3: Cross multiply
    8,715.16x = 13,077.87 × 3,450.67
  4. Step 4: Simplify right side
    8,715.16x = 45,127,413.67
  5. Step 5: Solve for x
    x = 45,127,413.67/8,715.16
  6. Step 6: Final answer
    x = 5,178.04

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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.