Home / 13,461.36-20,199.48-5,670

Finding the Fourth Proportional to 13,461.36, 20,199.48 and 5,670

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Solution

The fourth proportional to 13,461.36, 20,199.48 and 5,670 is: 8,508.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,461.36 : 20,199.48 = 5,670 : x
  2. Step 2: Convert to fraction form
    13,461.36/20,199.48 = 5,670/x
  3. Step 3: Cross multiply
    13,461.36x = 20,199.48 × 5,670
  4. Step 4: Simplify right side
    13,461.36x = 114,531,051.60
  5. Step 5: Solve for x
    x = 114,531,051.60/13,461.36
  6. Step 6: Final answer
    x = 8,508.13

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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.