Home / 13,201.51-19,802.31-3,340.79

Finding the Fourth Proportional to 13,201.51, 19,802.31 and 3,340.79

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Solution

The fourth proportional to 13,201.51, 19,802.31 and 3,340.79 is: 5,011.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,201.51 : 19,802.31 = 3,340.79 : x
  2. Step 2: Convert to fraction form
    13,201.51/19,802.31 = 3,340.79/x
  3. Step 3: Cross multiply
    13,201.51x = 19,802.31 × 3,340.79
  4. Step 4: Simplify right side
    13,201.51x = 66,155,359.22
  5. Step 5: Solve for x
    x = 66,155,359.22/13,201.51
  6. Step 6: Final answer
    x = 5,011.20

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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.