Home / 12,488.08-18,732.06-4,166.50

Finding the Fourth Proportional to 12,488.08, 18,732.06 and 4,166.50

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Solution

The fourth proportional to 12,488.08, 18,732.06 and 4,166.50 is: 6,249.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,488.08 : 18,732.06 = 4,166.50 : x
  2. Step 2: Convert to fraction form
    12,488.08/18,732.06 = 4,166.50/x
  3. Step 3: Cross multiply
    12,488.08x = 18,732.06 × 4,166.50
  4. Step 4: Simplify right side
    12,488.08x = 78,047,127.99
  5. Step 5: Solve for x
    x = 78,047,127.99/12,488.08
  6. Step 6: Final answer
    x = 6,249.73

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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.