Home / 8,461.44-11,677.80-5,317.20

Finding the Fourth Proportional to 8,461.44, 11,677.80 and 5,317.20

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Solution

The fourth proportional to 8,461.44, 11,677.80 and 5,317.20 is: 7,338.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,461.44 : 11,677.80 = 5,317.20 : x
  2. Step 2: Convert to fraction form
    8,461.44/11,677.80 = 5,317.20/x
  3. Step 3: Cross multiply
    8,461.44x = 11,677.80 × 5,317.20
  4. Step 4: Simplify right side
    8,461.44x = 62,093,198.16
  5. Step 5: Solve for x
    x = 62,093,198.16/8,461.44
  6. Step 6: Final answer
    x = 7,338.37

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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.