Home / 7,020.60-9,668.75-6,867.51

Finding the Fourth Proportional to 7,020.60, 9,668.75 and 6,867.51

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Solution

The fourth proportional to 7,020.60, 9,668.75 and 6,867.51 is: 9,457.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,020.60 : 9,668.75 = 6,867.51 : x
  2. Step 2: Convert to fraction form
    7,020.60/9,668.75 = 6,867.51/x
  3. Step 3: Cross multiply
    7,020.60x = 9,668.75 × 6,867.51
  4. Step 4: Simplify right side
    7,020.60x = 66,400,202.97
  5. Step 5: Solve for x
    x = 66,400,202.97/7,020.60
  6. Step 6: Final answer
    x = 9,457.91

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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.