Home / 13,310.43-19,966.80-4,879.22

Finding the Fourth Proportional to 13,310.43, 19,966.80 and 4,879.22

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Solution

The fourth proportional to 13,310.43, 19,966.80 and 4,879.22 is: 7,319.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,310.43 : 19,966.80 = 4,879.22 : x
  2. Step 2: Convert to fraction form
    13,310.43/19,966.80 = 4,879.22/x
  3. Step 3: Cross multiply
    13,310.43x = 19,966.80 × 4,879.22
  4. Step 4: Simplify right side
    13,310.43x = 97,422,310.06
  5. Step 5: Solve for x
    x = 97,422,310.06/13,310.43
  6. Step 6: Final answer
    x = 7,319.25

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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.