Home / 13,323.97-19,980.75-4,999.45

Finding the Fourth Proportional to 13,323.97, 19,980.75 and 4,999.45

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Solution

The fourth proportional to 13,323.97, 19,980.75 and 4,999.45 is: 7,497.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,323.97 : 19,980.75 = 4,999.45 : x
  2. Step 2: Convert to fraction form
    13,323.97/19,980.75 = 4,999.45/x
  3. Step 3: Cross multiply
    13,323.97x = 19,980.75 × 4,999.45
  4. Step 4: Simplify right side
    13,323.97x = 99,892,760.59
  5. Step 5: Solve for x
    x = 99,892,760.59/13,323.97
  6. Step 6: Final answer
    x = 7,497.22

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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.