Home / 13,331.07-19,989.92-4,443.28

Finding the Fourth Proportional to 13,331.07, 19,989.92 and 4,443.28

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Solution

The fourth proportional to 13,331.07, 19,989.92 and 4,443.28 is: 6,662.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,331.07 : 19,989.92 = 4,443.28 : x
  2. Step 2: Convert to fraction form
    13,331.07/19,989.92 = 4,443.28/x
  3. Step 3: Cross multiply
    13,331.07x = 19,989.92 × 4,443.28
  4. Step 4: Simplify right side
    13,331.07x = 88,820,811.74
  5. Step 5: Solve for x
    x = 88,820,811.74/13,331.07
  6. Step 6: Final answer
    x = 6,662.69

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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.