Home / 13,918.77-20,859.32-7,349.87

Finding the Fourth Proportional to 13,918.77, 20,859.32 and 7,349.87

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Solution

The fourth proportional to 13,918.77, 20,859.32 and 7,349.87 is: 11,014.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,918.77 : 20,859.32 = 7,349.87 : x
  2. Step 2: Convert to fraction form
    13,918.77/20,859.32 = 7,349.87/x
  3. Step 3: Cross multiply
    13,918.77x = 20,859.32 × 7,349.87
  4. Step 4: Simplify right side
    13,918.77x = 153,313,360.81
  5. Step 5: Solve for x
    x = 153,313,360.81/13,918.77
  6. Step 6: Final answer
    x = 11,014.86

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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.