Home / 12,776.46-19,158.48-4,879.32

Finding the Fourth Proportional to 12,776.46, 19,158.48 and 4,879.32

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Solution

The fourth proportional to 12,776.46, 19,158.48 and 4,879.32 is: 7,316.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,776.46 : 19,158.48 = 4,879.32 : x
  2. Step 2: Convert to fraction form
    12,776.46/19,158.48 = 4,879.32/x
  3. Step 3: Cross multiply
    12,776.46x = 19,158.48 × 4,879.32
  4. Step 4: Simplify right side
    12,776.46x = 93,480,354.63
  5. Step 5: Solve for x
    x = 93,480,354.63/12,776.46
  6. Step 6: Final answer
    x = 7,316.61

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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.