Home / 12,185.55-16,818.30-6,881.94

Finding the Fourth Proportional to 12,185.55, 16,818.30 and 6,881.94

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Solution

The fourth proportional to 12,185.55, 16,818.30 and 6,881.94 is: 9,498.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,185.55 : 16,818.30 = 6,881.94 : x
  2. Step 2: Convert to fraction form
    12,185.55/16,818.30 = 6,881.94/x
  3. Step 3: Cross multiply
    12,185.55x = 16,818.30 × 6,881.94
  4. Step 4: Simplify right side
    12,185.55x = 115,742,531.50
  5. Step 5: Solve for x
    x = 115,742,531.50/12,185.55
  6. Step 6: Final answer
    x = 9,498.34

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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.