Home / 13,131.21-19,704.32-4,810.13

Finding the Fourth Proportional to 13,131.21, 19,704.32 and 4,810.13

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Solution

The fourth proportional to 13,131.21, 19,704.32 and 4,810.13 is: 7,217.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,131.21 : 19,704.32 = 4,810.13 : x
  2. Step 2: Convert to fraction form
    13,131.21/19,704.32 = 4,810.13/x
  3. Step 3: Cross multiply
    13,131.21x = 19,704.32 × 4,810.13
  4. Step 4: Simplify right side
    13,131.21x = 94,780,218.19
  5. Step 5: Solve for x
    x = 94,780,218.19/13,131.21
  6. Step 6: Final answer
    x = 7,217.93

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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.