Home / 9,081.20-13,626.04-5,390.70

Finding the Fourth Proportional to 9,081.20, 13,626.04 and 5,390.70

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Solution

The fourth proportional to 9,081.20, 13,626.04 and 5,390.70 is: 8,088.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,081.20 : 13,626.04 = 5,390.70 : x
  2. Step 2: Convert to fraction form
    9,081.20/13,626.04 = 5,390.70/x
  3. Step 3: Cross multiply
    9,081.20x = 13,626.04 × 5,390.70
  4. Step 4: Simplify right side
    9,081.20x = 73,453,893.83
  5. Step 5: Solve for x
    x = 73,453,893.83/9,081.20
  6. Step 6: Final answer
    x = 8,088.57

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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.