Home / 18,633.08-27,950.10-5,485.88

Finding the Fourth Proportional to 18,633.08, 27,950.10 and 5,485.88

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Solution

The fourth proportional to 18,633.08, 27,950.10 and 5,485.88 is: 8,228.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,633.08 : 27,950.10 = 5,485.88 : x
  2. Step 2: Convert to fraction form
    18,633.08/27,950.10 = 5,485.88/x
  3. Step 3: Cross multiply
    18,633.08x = 27,950.10 × 5,485.88
  4. Step 4: Simplify right side
    18,633.08x = 153,330,894.59
  5. Step 5: Solve for x
    x = 153,330,894.59/18,633.08
  6. Step 6: Final answer
    x = 8,228.96

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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.