Home / 13,712.70-18,954.63-12,624.06

Finding the Fourth Proportional to 13,712.70, 18,954.63 and 12,624.06

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Solution

The fourth proportional to 13,712.70, 18,954.63 and 12,624.06 is: 17,449.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,712.70 : 18,954.63 = 12,624.06 : x
  2. Step 2: Convert to fraction form
    13,712.70/18,954.63 = 12,624.06/x
  3. Step 3: Cross multiply
    13,712.70x = 18,954.63 × 12,624.06
  4. Step 4: Simplify right side
    13,712.70x = 239,284,386.40
  5. Step 5: Solve for x
    x = 239,284,386.40/13,712.70
  6. Step 6: Final answer
    x = 17,449.84

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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.