Home / 8,668.46-11,967.61-5,689.51

Finding the Fourth Proportional to 8,668.46, 11,967.61 and 5,689.51

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Solution

The fourth proportional to 8,668.46, 11,967.61 and 5,689.51 is: 7,854.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,668.46 : 11,967.61 = 5,689.51 : x
  2. Step 2: Convert to fraction form
    8,668.46/11,967.61 = 5,689.51/x
  3. Step 3: Cross multiply
    8,668.46x = 11,967.61 × 5,689.51
  4. Step 4: Simplify right side
    8,668.46x = 68,089,836.77
  5. Step 5: Solve for x
    x = 68,089,836.77/8,668.46
  6. Step 6: Final answer
    x = 7,854.89

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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.