Home / 13,206.53-19,809.89-3,345.84

Finding the Fourth Proportional to 13,206.53, 19,809.89 and 3,345.84

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Solution

The fourth proportional to 13,206.53, 19,809.89 and 3,345.84 is: 5,018.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,206.53 : 19,809.89 = 3,345.84 : x
  2. Step 2: Convert to fraction form
    13,206.53/19,809.89 = 3,345.84/x
  3. Step 3: Cross multiply
    13,206.53x = 19,809.89 × 3,345.84
  4. Step 4: Simplify right side
    13,206.53x = 66,280,718.18
  5. Step 5: Solve for x
    x = 66,280,718.18/13,206.53
  6. Step 6: Final answer
    x = 5,018.78

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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.