Home / 12,520.58-18,780.88-5,027.54

Finding the Fourth Proportional to 12,520.58, 18,780.88 and 5,027.54

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Solution

The fourth proportional to 12,520.58, 18,780.88 and 5,027.54 is: 7,541.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,520.58 : 18,780.88 = 5,027.54 : x
  2. Step 2: Convert to fraction form
    12,520.58/18,780.88 = 5,027.54/x
  3. Step 3: Cross multiply
    12,520.58x = 18,780.88 × 5,027.54
  4. Step 4: Simplify right side
    12,520.58x = 94,421,625.44
  5. Step 5: Solve for x
    x = 94,421,625.44/12,520.58
  6. Step 6: Final answer
    x = 7,541.31

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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.