Home / 8,613.60-11,888.06-5,258.36

Finding the Fourth Proportional to 8,613.60, 11,888.06 and 5,258.36

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Solution

The fourth proportional to 8,613.60, 11,888.06 and 5,258.36 is: 7,257.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,613.60 : 11,888.06 = 5,258.36 : x
  2. Step 2: Convert to fraction form
    8,613.60/11,888.06 = 5,258.36/x
  3. Step 3: Cross multiply
    8,613.60x = 11,888.06 × 5,258.36
  4. Step 4: Simplify right side
    8,613.60x = 62,511,742.05
  5. Step 5: Solve for x
    x = 62,511,742.05/8,613.60
  6. Step 6: Final answer
    x = 7,257.33

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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.