Home / 18,166.55-27,231.60-8,312.90

Finding the Fourth Proportional to 18,166.55, 27,231.60 and 8,312.90

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Solution

The fourth proportional to 18,166.55, 27,231.60 and 8,312.90 is: 12,461.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,166.55 : 27,231.60 = 8,312.90 : x
  2. Step 2: Convert to fraction form
    18,166.55/27,231.60 = 8,312.90/x
  3. Step 3: Cross multiply
    18,166.55x = 27,231.60 × 8,312.90
  4. Step 4: Simplify right side
    18,166.55x = 226,373,567.64
  5. Step 5: Solve for x
    x = 226,373,567.64/18,166.55
  6. Step 6: Final answer
    x = 12,461.01

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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.