Home / 7,474.96-10,258.58-6,878.80

Finding the Fourth Proportional to 7,474.96, 10,258.58 and 6,878.80

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Solution

The fourth proportional to 7,474.96, 10,258.58 and 6,878.80 is: 9,440.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,474.96 : 10,258.58 = 6,878.80 : x
  2. Step 2: Convert to fraction form
    7,474.96/10,258.58 = 6,878.80/x
  3. Step 3: Cross multiply
    7,474.96x = 10,258.58 × 6,878.80
  4. Step 4: Simplify right side
    7,474.96x = 70,566,720.10
  5. Step 5: Solve for x
    x = 70,566,720.10/7,474.96
  6. Step 6: Final answer
    x = 9,440.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.