Home / 13,629.21-20,434.37-6,952.74

Finding the Fourth Proportional to 13,629.21, 20,434.37 and 6,952.74

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Solution

The fourth proportional to 13,629.21, 20,434.37 and 6,952.74 is: 10,424.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,629.21 : 20,434.37 = 6,952.74 : x
  2. Step 2: Convert to fraction form
    13,629.21/20,434.37 = 6,952.74/x
  3. Step 3: Cross multiply
    13,629.21x = 20,434.37 × 6,952.74
  4. Step 4: Simplify right side
    13,629.21x = 142,074,826.91
  5. Step 5: Solve for x
    x = 142,074,826.91/13,629.21
  6. Step 6: Final answer
    x = 10,424.29

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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.