Home / 12,311.31-18,466.85-3,077.31

Finding the Fourth Proportional to 12,311.31, 18,466.85 and 3,077.31

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Solution

The fourth proportional to 12,311.31, 18,466.85 and 3,077.31 is: 4,615.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,311.31 : 18,466.85 = 3,077.31 : x
  2. Step 2: Convert to fraction form
    12,311.31/18,466.85 = 3,077.31/x
  3. Step 3: Cross multiply
    12,311.31x = 18,466.85 × 3,077.31
  4. Step 4: Simplify right side
    12,311.31x = 56,828,206.79
  5. Step 5: Solve for x
    x = 56,828,206.79/12,311.31
  6. Step 6: Final answer
    x = 4,615.94

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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.