Home / 13,319.97-19,974.76-4,995.45

Finding the Fourth Proportional to 13,319.97, 19,974.76 and 4,995.45

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Solution

The fourth proportional to 13,319.97, 19,974.76 and 4,995.45 is: 7,491.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,319.97 : 19,974.76 = 4,995.45 : x
  2. Step 2: Convert to fraction form
    13,319.97/19,974.76 = 4,995.45/x
  3. Step 3: Cross multiply
    13,319.97x = 19,974.76 × 4,995.45
  4. Step 4: Simplify right side
    13,319.97x = 99,782,914.84
  5. Step 5: Solve for x
    x = 99,782,914.84/13,319.97
  6. Step 6: Final answer
    x = 7,491.23

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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.