Home / 12,107.30-18,162.12-4,712.36

Finding the Fourth Proportional to 12,107.30, 18,162.12 and 4,712.36

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Solution

The fourth proportional to 12,107.30, 18,162.12 and 4,712.36 is: 7,069.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,107.30 : 18,162.12 = 4,712.36 : x
  2. Step 2: Convert to fraction form
    12,107.30/18,162.12 = 4,712.36/x
  3. Step 3: Cross multiply
    12,107.30x = 18,162.12 × 4,712.36
  4. Step 4: Simplify right side
    12,107.30x = 85,586,447.80
  5. Step 5: Solve for x
    x = 85,586,447.80/12,107.30
  6. Step 6: Final answer
    x = 7,069.00

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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.