Home / 13,329.67-19,994.41-5,430.33

Finding the Fourth Proportional to 13,329.67, 19,994.41 and 5,430.33

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Solution

The fourth proportional to 13,329.67, 19,994.41 and 5,430.33 is: 8,145.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,329.67 : 19,994.41 = 5,430.33 : x
  2. Step 2: Convert to fraction form
    13,329.67/19,994.41 = 5,430.33/x
  3. Step 3: Cross multiply
    13,329.67x = 19,994.41 × 5,430.33
  4. Step 4: Simplify right side
    13,329.67x = 108,576,217.30
  5. Step 5: Solve for x
    x = 108,576,217.30/13,329.67
  6. Step 6: Final answer
    x = 8,145.45

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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.