Home / 12,303.90-16,980.30-6,998.94

Finding the Fourth Proportional to 12,303.90, 16,980.30 and 6,998.94

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Solution

The fourth proportional to 12,303.90, 16,980.30 and 6,998.94 is: 9,659.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,303.90 : 16,980.30 = 6,998.94 : x
  2. Step 2: Convert to fraction form
    12,303.90/16,980.30 = 6,998.94/x
  3. Step 3: Cross multiply
    12,303.90x = 16,980.30 × 6,998.94
  4. Step 4: Simplify right side
    12,303.90x = 118,844,100.88
  5. Step 5: Solve for x
    x = 118,844,100.88/12,303.90
  6. Step 6: Final answer
    x = 9,659.06

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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.