Home / 12,671.72-17,473.56-8,698.64

Finding the Fourth Proportional to 12,671.72, 17,473.56 and 8,698.64

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Solution

The fourth proportional to 12,671.72, 17,473.56 and 8,698.64 is: 11,994.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,671.72 : 17,473.56 = 8,698.64 : x
  2. Step 2: Convert to fraction form
    12,671.72/17,473.56 = 8,698.64/x
  3. Step 3: Cross multiply
    12,671.72x = 17,473.56 × 8,698.64
  4. Step 4: Simplify right side
    12,671.72x = 151,996,207.96
  5. Step 5: Solve for x
    x = 151,996,207.96/12,671.72
  6. Step 6: Final answer
    x = 11,994.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.