Home / 11,258.16-15,528.96-6,778.68

Finding the Fourth Proportional to 11,258.16, 15,528.96 and 6,778.68

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Solution

The fourth proportional to 11,258.16, 15,528.96 and 6,778.68 is: 9,350.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,258.16 : 15,528.96 = 6,778.68 : x
  2. Step 2: Convert to fraction form
    11,258.16/15,528.96 = 6,778.68/x
  3. Step 3: Cross multiply
    11,258.16x = 15,528.96 × 6,778.68
  4. Step 4: Simplify right side
    11,258.16x = 105,265,850.57
  5. Step 5: Solve for x
    x = 105,265,850.57/11,258.16
  6. Step 6: Final answer
    x = 9,350.18

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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.