Home / 13,469.40-20,197.34-8,535.28

Finding the Fourth Proportional to 13,469.40, 20,197.34 and 8,535.28

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Solution

The fourth proportional to 13,469.40, 20,197.34 and 8,535.28 is: 12,798.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,469.40 : 20,197.34 = 8,535.28 : x
  2. Step 2: Convert to fraction form
    13,469.40/20,197.34 = 8,535.28/x
  3. Step 3: Cross multiply
    13,469.40x = 20,197.34 × 8,535.28
  4. Step 4: Simplify right side
    13,469.40x = 172,389,952.16
  5. Step 5: Solve for x
    x = 172,389,952.16/13,469.40
  6. Step 6: Final answer
    x = 12,798.64

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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.