Home / 13,215.45-19,784.30-8,822.01

Finding the Fourth Proportional to 13,215.45, 19,784.30 and 8,822.01

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Solution

The fourth proportional to 13,215.45, 19,784.30 and 8,822.01 is: 13,207.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,215.45 : 19,784.30 = 8,822.01 : x
  2. Step 2: Convert to fraction form
    13,215.45/19,784.30 = 8,822.01/x
  3. Step 3: Cross multiply
    13,215.45x = 19,784.30 × 8,822.01
  4. Step 4: Simplify right side
    13,215.45x = 174,537,292.44
  5. Step 5: Solve for x
    x = 174,537,292.44/13,215.45
  6. Step 6: Final answer
    x = 13,207.06

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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.