Home / 12,107.85-18,127.94-6,541.25

Finding the Fourth Proportional to 12,107.85, 18,127.94 and 6,541.25

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Solution

The fourth proportional to 12,107.85, 18,127.94 and 6,541.25 is: 9,793.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,107.85 : 18,127.94 = 6,541.25 : x
  2. Step 2: Convert to fraction form
    12,107.85/18,127.94 = 6,541.25/x
  3. Step 3: Cross multiply
    12,107.85x = 18,127.94 × 6,541.25
  4. Step 4: Simplify right side
    12,107.85x = 118,579,315.16
  5. Step 5: Solve for x
    x = 118,579,315.16/12,107.85
  6. Step 6: Final answer
    x = 9,793.59

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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.