Home / 18,360.06-27,503.13-8,485.74

Finding the Fourth Proportional to 18,360.06, 27,503.13 and 8,485.74

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Solution

The fourth proportional to 18,360.06, 27,503.13 and 8,485.74 is: 12,711.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,360.06 : 27,503.13 = 8,485.74 : x
  2. Step 2: Convert to fraction form
    18,360.06/27,503.13 = 8,485.74/x
  3. Step 3: Cross multiply
    18,360.06x = 27,503.13 × 8,485.74
  4. Step 4: Simplify right side
    18,360.06x = 233,384,410.37
  5. Step 5: Solve for x
    x = 233,384,410.37/18,360.06
  6. Step 6: Final answer
    x = 12,711.53

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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.