Home / 13,214.24-19,829.36-5,318.51

Finding the Fourth Proportional to 13,214.24, 19,829.36 and 5,318.51

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Solution

The fourth proportional to 13,214.24, 19,829.36 and 5,318.51 is: 7,980.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,214.24 : 19,829.36 = 5,318.51 : x
  2. Step 2: Convert to fraction form
    13,214.24/19,829.36 = 5,318.51/x
  3. Step 3: Cross multiply
    13,214.24x = 19,829.36 × 5,318.51
  4. Step 4: Simplify right side
    13,214.24x = 105,462,645.23
  5. Step 5: Solve for x
    x = 105,462,645.23/13,214.24
  6. Step 6: Final answer
    x = 7,980.99

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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.