Home / 9,268.48-12,792.32-5,289.20

Finding the Fourth Proportional to 9,268.48, 12,792.32 and 5,289.20

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Solution

The fourth proportional to 9,268.48, 12,792.32 and 5,289.20 is: 7,300.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,268.48 : 12,792.32 = 5,289.20 : x
  2. Step 2: Convert to fraction form
    9,268.48/12,792.32 = 5,289.20/x
  3. Step 3: Cross multiply
    9,268.48x = 12,792.32 × 5,289.20
  4. Step 4: Simplify right side
    9,268.48x = 67,661,138.94
  5. Step 5: Solve for x
    x = 67,661,138.94/9,268.48
  6. Step 6: Final answer
    x = 7,300.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.