Home / 18,173.74-27,216.87-12,312.58

Finding the Fourth Proportional to 18,173.74, 27,216.87 and 12,312.58

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Solution

The fourth proportional to 18,173.74, 27,216.87 and 12,312.58 is: 18,439.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,173.74 : 27,216.87 = 12,312.58 : x
  2. Step 2: Convert to fraction form
    18,173.74/27,216.87 = 12,312.58/x
  3. Step 3: Cross multiply
    18,173.74x = 27,216.87 × 12,312.58
  4. Step 4: Simplify right side
    18,173.74x = 335,109,827.66
  5. Step 5: Solve for x
    x = 335,109,827.66/18,173.74
  6. Step 6: Final answer
    x = 18,439.23

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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.