Home / 12,927.50-19,391.40-4,162.40

Finding the Fourth Proportional to 12,927.50, 19,391.40 and 4,162.40

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Solution

The fourth proportional to 12,927.50, 19,391.40 and 4,162.40 is: 6,243.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,927.50 : 19,391.40 = 4,162.40 : x
  2. Step 2: Convert to fraction form
    12,927.50/19,391.40 = 4,162.40/x
  3. Step 3: Cross multiply
    12,927.50x = 19,391.40 × 4,162.40
  4. Step 4: Simplify right side
    12,927.50x = 80,714,763.36
  5. Step 5: Solve for x
    x = 80,714,763.36/12,927.50
  6. Step 6: Final answer
    x = 6,243.65

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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.