Home / 12,985.90-19,481.74-6,056.62

Finding the Fourth Proportional to 12,985.90, 19,481.74 and 6,056.62

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Solution

The fourth proportional to 12,985.90, 19,481.74 and 6,056.62 is: 9,086.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,985.90 : 19,481.74 = 6,056.62 : x
  2. Step 2: Convert to fraction form
    12,985.90/19,481.74 = 6,056.62/x
  3. Step 3: Cross multiply
    12,985.90x = 19,481.74 × 6,056.62
  4. Step 4: Simplify right side
    12,985.90x = 117,993,496.12
  5. Step 5: Solve for x
    x = 117,993,496.12/12,985.90
  6. Step 6: Final answer
    x = 9,086.28

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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.