Home / 12,874.32-19,281.60-10,979.64

Finding the Fourth Proportional to 12,874.32, 19,281.60 and 10,979.64

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Solution

The fourth proportional to 12,874.32, 19,281.60 and 10,979.64 is: 16,443.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,874.32 : 19,281.60 = 10,979.64 : x
  2. Step 2: Convert to fraction form
    12,874.32/19,281.60 = 10,979.64/x
  3. Step 3: Cross multiply
    12,874.32x = 19,281.60 × 10,979.64
  4. Step 4: Simplify right side
    12,874.32x = 211,705,026.62
  5. Step 5: Solve for x
    x = 211,705,026.62/12,874.32
  6. Step 6: Final answer
    x = 16,443.98

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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.