Home / 13,206.25-19,810.09-3,345.61

Finding the Fourth Proportional to 13,206.25, 19,810.09 and 3,345.61

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Solution

The fourth proportional to 13,206.25, 19,810.09 and 3,345.61 is: 5,018.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,206.25 : 19,810.09 = 3,345.61 : x
  2. Step 2: Convert to fraction form
    13,206.25/19,810.09 = 3,345.61/x
  3. Step 3: Cross multiply
    13,206.25x = 19,810.09 × 3,345.61
  4. Step 4: Simplify right side
    13,206.25x = 66,276,827.01
  5. Step 5: Solve for x
    x = 66,276,827.01/13,206.25
  6. Step 6: Final answer
    x = 5,018.60

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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.