Home / 13,558.06-18,710.43-7,590.39

Finding the Fourth Proportional to 13,558.06, 18,710.43 and 7,590.39

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Solution

The fourth proportional to 13,558.06, 18,710.43 and 7,590.39 is: 10,474.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,558.06 : 18,710.43 = 7,590.39 : x
  2. Step 2: Convert to fraction form
    13,558.06/18,710.43 = 7,590.39/x
  3. Step 3: Cross multiply
    13,558.06x = 18,710.43 × 7,590.39
  4. Step 4: Simplify right side
    13,558.06x = 142,019,362.14
  5. Step 5: Solve for x
    x = 142,019,362.14/13,558.06
  6. Step 6: Final answer
    x = 10,474.90

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.