Home / 13,581.48-20,373.30-5,790.36

Finding the Fourth Proportional to 13,581.48, 20,373.30 and 5,790.36

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Solution

The fourth proportional to 13,581.48, 20,373.30 and 5,790.36 is: 8,686.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,581.48 : 20,373.30 = 5,790.36 : x
  2. Step 2: Convert to fraction form
    13,581.48/20,373.30 = 5,790.36/x
  3. Step 3: Cross multiply
    13,581.48x = 20,373.30 × 5,790.36
  4. Step 4: Simplify right side
    13,581.48x = 117,968,741.39
  5. Step 5: Solve for x
    x = 117,968,741.39/13,581.48
  6. Step 6: Final answer
    x = 8,686.00

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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.