Home / 12,383.31-18,574.76-4,987.58

Finding the Fourth Proportional to 12,383.31, 18,574.76 and 4,987.58

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Solution

The fourth proportional to 12,383.31, 18,574.76 and 4,987.58 is: 7,481.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,383.31 : 18,574.76 = 4,987.58 : x
  2. Step 2: Convert to fraction form
    12,383.31/18,574.76 = 4,987.58/x
  3. Step 3: Cross multiply
    12,383.31x = 18,574.76 × 4,987.58
  4. Step 4: Simplify right side
    12,383.31x = 92,643,160.39
  5. Step 5: Solve for x
    x = 92,643,160.39/12,383.31
  6. Step 6: Final answer
    x = 7,481.29

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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.