Home / 12,145.95-18,219.38-4,246.92

Finding the Fourth Proportional to 12,145.95, 18,219.38 and 4,246.92

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Solution

The fourth proportional to 12,145.95, 18,219.38 and 4,246.92 is: 6,370.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,145.95 : 18,219.38 = 4,246.92 : x
  2. Step 2: Convert to fraction form
    12,145.95/18,219.38 = 4,246.92/x
  3. Step 3: Cross multiply
    12,145.95x = 18,219.38 × 4,246.92
  4. Step 4: Simplify right side
    12,145.95x = 77,376,228.08
  5. Step 5: Solve for x
    x = 77,376,228.08/12,145.95
  6. Step 6: Final answer
    x = 6,370.54

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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.