Home / 12,011.60-18,017.40-6,818.96

Finding the Fourth Proportional to 12,011.60, 18,017.40 and 6,818.96

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Solution

The fourth proportional to 12,011.60, 18,017.40 and 6,818.96 is: 10,228.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,011.60 : 18,017.40 = 6,818.96 : x
  2. Step 2: Convert to fraction form
    12,011.60/18,017.40 = 6,818.96/x
  3. Step 3: Cross multiply
    12,011.60x = 18,017.40 × 6,818.96
  4. Step 4: Simplify right side
    12,011.60x = 122,859,929.90
  5. Step 5: Solve for x
    x = 122,859,929.90/12,011.60
  6. Step 6: Final answer
    x = 10,228.44

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Similar ratio
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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.