Home / 12,555.08-18,832.62-4,763.90

Finding the Fourth Proportional to 12,555.08, 18,832.62 and 4,763.90

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Solution

The fourth proportional to 12,555.08, 18,832.62 and 4,763.90 is: 7,145.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,555.08 : 18,832.62 = 4,763.90 : x
  2. Step 2: Convert to fraction form
    12,555.08/18,832.62 = 4,763.90/x
  3. Step 3: Cross multiply
    12,555.08x = 18,832.62 × 4,763.90
  4. Step 4: Simplify right side
    12,555.08x = 89,716,718.42
  5. Step 5: Solve for x
    x = 89,716,718.42/12,555.08
  6. Step 6: Final answer
    x = 7,145.85

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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.