Home / 13,208.22-19,816.38-5,417.64

Finding the Fourth Proportional to 13,208.22, 19,816.38 and 5,417.64

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Solution

The fourth proportional to 13,208.22, 19,816.38 and 5,417.64 is: 8,128.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,208.22 : 19,816.38 = 5,417.64 : x
  2. Step 2: Convert to fraction form
    13,208.22/19,816.38 = 5,417.64/x
  3. Step 3: Cross multiply
    13,208.22x = 19,816.38 × 5,417.64
  4. Step 4: Simplify right side
    13,208.22x = 107,358,012.94
  5. Step 5: Solve for x
    x = 107,358,012.94/13,208.22
  6. Step 6: Final answer
    x = 8,128.12

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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.