Home / 25,646.64-38,469.72-8,116.48

Finding the Fourth Proportional to 25,646.64, 38,469.72 and 8,116.48

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Solution

The fourth proportional to 25,646.64, 38,469.72 and 8,116.48 is: 12,174.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,646.64 : 38,469.72 = 8,116.48 : x
  2. Step 2: Convert to fraction form
    25,646.64/38,469.72 = 8,116.48/x
  3. Step 3: Cross multiply
    25,646.64x = 38,469.72 × 8,116.48
  4. Step 4: Simplify right side
    25,646.64x = 312,238,712.99
  5. Step 5: Solve for x
    x = 312,238,712.99/25,646.64
  6. Step 6: Final answer
    x = 12,174.64

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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.