Home / 12,855.89-19,285.37-4,534.20

Finding the Fourth Proportional to 12,855.89, 19,285.37 and 4,534.20

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Solution

The fourth proportional to 12,855.89, 19,285.37 and 4,534.20 is: 6,801.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,855.89 : 19,285.37 = 4,534.20 : x
  2. Step 2: Convert to fraction form
    12,855.89/19,285.37 = 4,534.20/x
  3. Step 3: Cross multiply
    12,855.89x = 19,285.37 × 4,534.20
  4. Step 4: Simplify right side
    12,855.89x = 87,443,701.98
  5. Step 5: Solve for x
    x = 87,443,701.98/12,855.89
  6. Step 6: Final answer
    x = 6,801.84

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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.