Home / 18,209.66-27,295.02-12,999.74

Finding the Fourth Proportional to 18,209.66, 27,295.02 and 12,999.74

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Solution

The fourth proportional to 18,209.66, 27,295.02 and 12,999.74 is: 19,485.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,209.66 : 27,295.02 = 12,999.74 : x
  2. Step 2: Convert to fraction form
    18,209.66/27,295.02 = 12,999.74/x
  3. Step 3: Cross multiply
    18,209.66x = 27,295.02 × 12,999.74
  4. Step 4: Simplify right side
    18,209.66x = 354,828,026.82
  5. Step 5: Solve for x
    x = 354,828,026.82/18,209.66
  6. Step 6: Final answer
    x = 19,485.71

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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.