Home / 12,235.08-18,336.12-6,680.08

Finding the Fourth Proportional to 12,235.08, 18,336.12 and 6,680.08

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Solution

The fourth proportional to 12,235.08, 18,336.12 and 6,680.08 is: 10,011.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,235.08 : 18,336.12 = 6,680.08 : x
  2. Step 2: Convert to fraction form
    12,235.08/18,336.12 = 6,680.08/x
  3. Step 3: Cross multiply
    12,235.08x = 18,336.12 × 6,680.08
  4. Step 4: Simplify right side
    12,235.08x = 122,486,748.49
  5. Step 5: Solve for x
    x = 122,486,748.49/12,235.08
  6. Step 6: Final answer
    x = 10,011.11

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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.