Home / 7,551.57-11,372.55-6,878.19

Finding the Fourth Proportional to 7,551.57, 11,372.55 and 6,878.19

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Solution

The fourth proportional to 7,551.57, 11,372.55 and 6,878.19 is: 10,358.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,551.57 : 11,372.55 = 6,878.19 : x
  2. Step 2: Convert to fraction form
    7,551.57/11,372.55 = 6,878.19/x
  3. Step 3: Cross multiply
    7,551.57x = 11,372.55 × 6,878.19
  4. Step 4: Simplify right side
    7,551.57x = 78,222,559.68
  5. Step 5: Solve for x
    x = 78,222,559.68/7,551.57
  6. Step 6: Final answer
    x = 10,358.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.