Home / 13,971.06-20,966.01-5,205.98

Finding the Fourth Proportional to 13,971.06, 20,966.01 and 5,205.98

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Solution

The fourth proportional to 13,971.06, 20,966.01 and 5,205.98 is: 7,812.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,971.06 : 20,966.01 = 5,205.98 : x
  2. Step 2: Convert to fraction form
    13,971.06/20,966.01 = 5,205.98/x
  3. Step 3: Cross multiply
    13,971.06x = 20,966.01 × 5,205.98
  4. Step 4: Simplify right side
    13,971.06x = 109,148,628.74
  5. Step 5: Solve for x
    x = 109,148,628.74/13,971.06
  6. Step 6: Final answer
    x = 7,812.48

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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.