Home / 12,305.34-18,453.45-4,907.58

Finding the Fourth Proportional to 12,305.34, 18,453.45 and 4,907.58

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Solution

The fourth proportional to 12,305.34, 18,453.45 and 4,907.58 is: 7,359.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,305.34 : 18,453.45 = 4,907.58 : x
  2. Step 2: Convert to fraction form
    12,305.34/18,453.45 = 4,907.58/x
  3. Step 3: Cross multiply
    12,305.34x = 18,453.45 × 4,907.58
  4. Step 4: Simplify right side
    12,305.34x = 90,561,782.15
  5. Step 5: Solve for x
    x = 90,561,782.15/12,305.34
  6. Step 6: Final answer
    x = 7,359.55

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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.