Home / 12,180.34-16,809.62-6,875.65

Finding the Fourth Proportional to 12,180.34, 16,809.62 and 6,875.65

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Solution

The fourth proportional to 12,180.34, 16,809.62 and 6,875.65 is: 9,488.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,180.34 : 16,809.62 = 6,875.65 : x
  2. Step 2: Convert to fraction form
    12,180.34/16,809.62 = 6,875.65/x
  3. Step 3: Cross multiply
    12,180.34x = 16,809.62 × 6,875.65
  4. Step 4: Simplify right side
    12,180.34x = 115,577,063.75
  5. Step 5: Solve for x
    x = 115,577,063.75/12,180.34
  6. Step 6: Final answer
    x = 9,488.82

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Half scale
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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.