Home / 12,260.82-18,398.56-5,689.28

Finding the Fourth Proportional to 12,260.82, 18,398.56 and 5,689.28

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Solution

The fourth proportional to 12,260.82, 18,398.56 and 5,689.28 is: 8,537.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,260.82 : 18,398.56 = 5,689.28 : x
  2. Step 2: Convert to fraction form
    12,260.82/18,398.56 = 5,689.28/x
  3. Step 3: Cross multiply
    12,260.82x = 18,398.56 × 5,689.28
  4. Step 4: Simplify right side
    12,260.82x = 104,674,559.44
  5. Step 5: Solve for x
    x = 104,674,559.44/12,260.82
  6. Step 6: Final answer
    x = 8,537.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.