Home / 12,083.74-18,132.90-4,688.98

Finding the Fourth Proportional to 12,083.74, 18,132.90 and 4,688.98

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Solution

The fourth proportional to 12,083.74, 18,132.90 and 4,688.98 is: 7,036.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,083.74 : 18,132.90 = 4,688.98 : x
  2. Step 2: Convert to fraction form
    12,083.74/18,132.90 = 4,688.98/x
  3. Step 3: Cross multiply
    12,083.74x = 18,132.90 × 4,688.98
  4. Step 4: Simplify right side
    12,083.74x = 85,024,805.44
  5. Step 5: Solve for x
    x = 85,024,805.44/12,083.74
  6. Step 6: Final answer
    x = 7,036.30

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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.