Home / 13,810.43-20,716.37-3,951.20

Finding the Fourth Proportional to 13,810.43, 20,716.37 and 3,951.20

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Solution

The fourth proportional to 13,810.43, 20,716.37 and 3,951.20 is: 5,927.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,810.43 : 20,716.37 = 3,951.20 : x
  2. Step 2: Convert to fraction form
    13,810.43/20,716.37 = 3,951.20/x
  3. Step 3: Cross multiply
    13,810.43x = 20,716.37 × 3,951.20
  4. Step 4: Simplify right side
    13,810.43x = 81,854,397.81
  5. Step 5: Solve for x
    x = 81,854,397.81/13,810.43
  6. Step 6: Final answer
    x = 5,927.00

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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.