Home / 13,206.14-19,809.30-3,345.45

Finding the Fourth Proportional to 13,206.14, 19,809.30 and 3,345.45

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Solution

The fourth proportional to 13,206.14, 19,809.30 and 3,345.45 is: 5,018.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,206.14 : 19,809.30 = 3,345.45 : x
  2. Step 2: Convert to fraction form
    13,206.14/19,809.30 = 3,345.45/x
  3. Step 3: Cross multiply
    13,206.14x = 19,809.30 × 3,345.45
  4. Step 4: Simplify right side
    13,206.14x = 66,271,022.69
  5. Step 5: Solve for x
    x = 66,271,022.69/13,206.14
  6. Step 6: Final answer
    x = 5,018.20

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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.