Home / 13,314.50-19,971.21-3,954.14

Finding the Fourth Proportional to 13,314.50, 19,971.21 and 3,954.14

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Solution

The fourth proportional to 13,314.50, 19,971.21 and 3,954.14 is: 5,931.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,314.50 : 19,971.21 = 3,954.14 : x
  2. Step 2: Convert to fraction form
    13,314.50/19,971.21 = 3,954.14/x
  3. Step 3: Cross multiply
    13,314.50x = 19,971.21 × 3,954.14
  4. Step 4: Simplify right side
    13,314.50x = 78,968,960.31
  5. Step 5: Solve for x
    x = 78,968,960.31/13,314.50
  6. Step 6: Final answer
    x = 5,931.05

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1.5x scale

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.