Home / 13,140.36-19,710.54-4,375.08

Finding the Fourth Proportional to 13,140.36, 19,710.54 and 4,375.08

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Solution

The fourth proportional to 13,140.36, 19,710.54 and 4,375.08 is: 6,562.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,140.36 : 19,710.54 = 4,375.08 : x
  2. Step 2: Convert to fraction form
    13,140.36/19,710.54 = 4,375.08/x
  3. Step 3: Cross multiply
    13,140.36x = 19,710.54 × 4,375.08
  4. Step 4: Simplify right side
    13,140.36x = 86,235,189.34
  5. Step 5: Solve for x
    x = 86,235,189.34/13,140.36
  6. Step 6: Final answer
    x = 6,562.62

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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.