Home / 8,928.91-13,393.95-2,688.67

Finding the Fourth Proportional to 8,928.91, 13,393.95 and 2,688.67

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Solution

The fourth proportional to 8,928.91, 13,393.95 and 2,688.67 is: 4,033.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,928.91 : 13,393.95 = 2,688.67 : x
  2. Step 2: Convert to fraction form
    8,928.91/13,393.95 = 2,688.67/x
  3. Step 3: Cross multiply
    8,928.91x = 13,393.95 × 2,688.67
  4. Step 4: Simplify right side
    8,928.91x = 36,011,911.55
  5. Step 5: Solve for x
    x = 36,011,911.55/8,928.91
  6. Step 6: Final answer
    x = 4,033.18

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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.