Home / 26,310.80-39,469.20-8,782.40

Finding the Fourth Proportional to 26,310.80, 39,469.20 and 8,782.40

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Solution

The fourth proportional to 26,310.80, 39,469.20 and 8,782.40 is: 13,174.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,310.80 : 39,469.20 = 8,782.40 : x
  2. Step 2: Convert to fraction form
    26,310.80/39,469.20 = 8,782.40/x
  3. Step 3: Cross multiply
    26,310.80x = 39,469.20 × 8,782.40
  4. Step 4: Simplify right side
    26,310.80x = 346,634,302.08
  5. Step 5: Solve for x
    x = 346,634,302.08/26,310.80
  6. Step 6: Final answer
    x = 13,174.60

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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.