Home / 12,999.04-19,501.20-4,231.60

Finding the Fourth Proportional to 12,999.04, 19,501.20 and 4,231.60

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Solution

The fourth proportional to 12,999.04, 19,501.20 and 4,231.60 is: 6,348.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,999.04 : 19,501.20 = 4,231.60 : x
  2. Step 2: Convert to fraction form
    12,999.04/19,501.20 = 4,231.60/x
  3. Step 3: Cross multiply
    12,999.04x = 19,501.20 × 4,231.60
  4. Step 4: Simplify right side
    12,999.04x = 82,521,277.92
  5. Step 5: Solve for x
    x = 82,521,277.92/12,999.04
  6. Step 6: Final answer
    x = 6,348.26

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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.