Home / 13,206.76-19,812.44-5,811.02

Finding the Fourth Proportional to 13,206.76, 19,812.44 and 5,811.02

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Solution

The fourth proportional to 13,206.76, 19,812.44 and 5,811.02 is: 8,717.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,206.76 : 19,812.44 = 5,811.02 : x
  2. Step 2: Convert to fraction form
    13,206.76/19,812.44 = 5,811.02/x
  3. Step 3: Cross multiply
    13,206.76x = 19,812.44 × 5,811.02
  4. Step 4: Simplify right side
    13,206.76x = 115,130,534.62
  5. Step 5: Solve for x
    x = 115,130,534.62/13,206.76
  6. Step 6: Final answer
    x = 8,717.55

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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.