Home / 12,455.18-18,683.11-3,094.82

Finding the Fourth Proportional to 12,455.18, 18,683.11 and 3,094.82

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Solution

The fourth proportional to 12,455.18, 18,683.11 and 3,094.82 is: 4,642.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,455.18 : 18,683.11 = 3,094.82 : x
  2. Step 2: Convert to fraction form
    12,455.18/18,683.11 = 3,094.82/x
  3. Step 3: Cross multiply
    12,455.18x = 18,683.11 × 3,094.82
  4. Step 4: Simplify right side
    12,455.18x = 57,820,761.34
  5. Step 5: Solve for x
    x = 57,820,761.34/12,455.18
  6. Step 6: Final answer
    x = 4,642.31

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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.