Home / 13,239.99-19,862.44-4,355.81

Finding the Fourth Proportional to 13,239.99, 19,862.44 and 4,355.81

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Solution

The fourth proportional to 13,239.99, 19,862.44 and 4,355.81 is: 6,534.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,239.99 : 19,862.44 = 4,355.81 : x
  2. Step 2: Convert to fraction form
    13,239.99/19,862.44 = 4,355.81/x
  3. Step 3: Cross multiply
    13,239.99x = 19,862.44 × 4,355.81
  4. Step 4: Simplify right side
    13,239.99x = 86,516,979.06
  5. Step 5: Solve for x
    x = 86,516,979.06/13,239.99
  6. Step 6: Final answer
    x = 6,534.52

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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.