Home / 13,448.04-18,555.93-7,781.82

Finding the Fourth Proportional to 13,448.04, 18,555.93 and 7,781.82

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Solution

The fourth proportional to 13,448.04, 18,555.93 and 7,781.82 is: 10,737.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,448.04 : 18,555.93 = 7,781.82 : x
  2. Step 2: Convert to fraction form
    13,448.04/18,555.93 = 7,781.82/x
  3. Step 3: Cross multiply
    13,448.04x = 18,555.93 × 7,781.82
  4. Step 4: Simplify right side
    13,448.04x = 144,398,907.19
  5. Step 5: Solve for x
    x = 144,398,907.19/13,448.04
  6. Step 6: Final answer
    x = 10,737.54

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Why These Related Problems?

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