Home / 13,220.08-19,828.40-3,358.48

Finding the Fourth Proportional to 13,220.08, 19,828.40 and 3,358.48

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Solution

The fourth proportional to 13,220.08, 19,828.40 and 3,358.48 is: 5,037.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,220.08 : 19,828.40 = 3,358.48 : x
  2. Step 2: Convert to fraction form
    13,220.08/19,828.40 = 3,358.48/x
  3. Step 3: Cross multiply
    13,220.08x = 19,828.40 × 3,358.48
  4. Step 4: Simplify right side
    13,220.08x = 66,593,284.83
  5. Step 5: Solve for x
    x = 66,593,284.83/13,220.08
  6. Step 6: Final answer
    x = 5,037.28

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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.