Home / 13,104.48-19,645.64-5,318.76

Finding the Fourth Proportional to 13,104.48, 19,645.64 and 5,318.76

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Solution

The fourth proportional to 13,104.48, 19,645.64 and 5,318.76 is: 7,973.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,104.48 : 19,645.64 = 5,318.76 : x
  2. Step 2: Convert to fraction form
    13,104.48/19,645.64 = 5,318.76/x
  3. Step 3: Cross multiply
    13,104.48x = 19,645.64 × 5,318.76
  4. Step 4: Simplify right side
    13,104.48x = 104,490,444.21
  5. Step 5: Solve for x
    x = 104,490,444.21/13,104.48
  6. Step 6: Final answer
    x = 7,973.64

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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.