Home / 9,199.77-12,693.71-5,220.57

Finding the Fourth Proportional to 9,199.77, 12,693.71 and 5,220.57

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Solution

The fourth proportional to 9,199.77, 12,693.71 and 5,220.57 is: 7,203.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,199.77 : 12,693.71 = 5,220.57 : x
  2. Step 2: Convert to fraction form
    9,199.77/12,693.71 = 5,220.57/x
  3. Step 3: Cross multiply
    9,199.77x = 12,693.71 × 5,220.57
  4. Step 4: Simplify right side
    9,199.77x = 66,268,375.51
  5. Step 5: Solve for x
    x = 66,268,375.51/9,199.77
  6. Step 6: Final answer
    x = 7,203.26

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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.