Home / 12,929.24-19,395.69-4,162.12

Finding the Fourth Proportional to 12,929.24, 19,395.69 and 4,162.12

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Solution

The fourth proportional to 12,929.24, 19,395.69 and 4,162.12 is: 6,243.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,929.24 : 19,395.69 = 4,162.12 : x
  2. Step 2: Convert to fraction form
    12,929.24/19,395.69 = 4,162.12/x
  3. Step 3: Cross multiply
    12,929.24x = 19,395.69 × 4,162.12
  4. Step 4: Simplify right side
    12,929.24x = 80,727,189.26
  5. Step 5: Solve for x
    x = 80,727,189.26/12,929.24
  6. Step 6: Final answer
    x = 6,243.77

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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.