Home / 26,190.64-39,287.94-8,421.58

Finding the Fourth Proportional to 26,190.64, 39,287.94 and 8,421.58

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Solution

The fourth proportional to 26,190.64, 39,287.94 and 8,421.58 is: 12,633.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,190.64 : 39,287.94 = 8,421.58 : x
  2. Step 2: Convert to fraction form
    26,190.64/39,287.94 = 8,421.58/x
  3. Step 3: Cross multiply
    26,190.64x = 39,287.94 × 8,421.58
  4. Step 4: Simplify right side
    26,190.64x = 330,866,529.75
  5. Step 5: Solve for x
    x = 330,866,529.75/26,190.64
  6. Step 6: Final answer
    x = 12,633.01

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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.