Home / 8,928.93-13,395.27-2,689.40

Finding the Fourth Proportional to 8,928.93, 13,395.27 and 2,689.40

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Solution

The fourth proportional to 8,928.93, 13,395.27 and 2,689.40 is: 4,034.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,928.93 : 13,395.27 = 2,689.40 : x
  2. Step 2: Convert to fraction form
    8,928.93/13,395.27 = 2,689.40/x
  3. Step 3: Cross multiply
    8,928.93x = 13,395.27 × 2,689.40
  4. Step 4: Simplify right side
    8,928.93x = 36,025,282.71
  5. Step 5: Solve for x
    x = 36,025,282.71/8,928.93
  6. Step 6: Final answer
    x = 4,034.67

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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.