Home / 12,374.30-18,628.93-11,285.66

Finding the Fourth Proportional to 12,374.30, 18,628.93 and 11,285.66

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Solution

The fourth proportional to 12,374.30, 18,628.93 and 11,285.66 is: 16,990.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,374.30 : 18,628.93 = 11,285.66 : x
  2. Step 2: Convert to fraction form
    12,374.30/18,628.93 = 11,285.66/x
  3. Step 3: Cross multiply
    12,374.30x = 18,628.93 × 11,285.66
  4. Step 4: Simplify right side
    12,374.30x = 210,239,713.72
  5. Step 5: Solve for x
    x = 210,239,713.72/12,374.30
  6. Step 6: Final answer
    x = 16,990.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.