Home / 13,842.06-20,762.96-3,981.30

Finding the Fourth Proportional to 13,842.06, 20,762.96 and 3,981.30

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Solution

The fourth proportional to 13,842.06, 20,762.96 and 3,981.30 is: 5,971.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,842.06 : 20,762.96 = 3,981.30 : x
  2. Step 2: Convert to fraction form
    13,842.06/20,762.96 = 3,981.30/x
  3. Step 3: Cross multiply
    13,842.06x = 20,762.96 × 3,981.30
  4. Step 4: Simplify right side
    13,842.06x = 82,663,572.65
  5. Step 5: Solve for x
    x = 82,663,572.65/13,842.06
  6. Step 6: Final answer
    x = 5,971.91

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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.