Home / 13,118.51-19,680.50-7,262.84

Finding the Fourth Proportional to 13,118.51, 19,680.50 and 7,262.84

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Solution

The fourth proportional to 13,118.51, 19,680.50 and 7,262.84 is: 10,895.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,118.51 : 19,680.50 = 7,262.84 : x
  2. Step 2: Convert to fraction form
    13,118.51/19,680.50 = 7,262.84/x
  3. Step 3: Cross multiply
    13,118.51x = 19,680.50 × 7,262.84
  4. Step 4: Simplify right side
    13,118.51x = 142,936,242.37
  5. Step 5: Solve for x
    x = 142,936,242.37/13,118.51
  6. Step 6: Final answer
    x = 10,895.77

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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.