Home / 12,185.34-16,816.23-6,880.74

Finding the Fourth Proportional to 12,185.34, 16,816.23 and 6,880.74

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Solution

The fourth proportional to 12,185.34, 16,816.23 and 6,880.74 is: 9,495.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,185.34 : 16,816.23 = 6,880.74 : x
  2. Step 2: Convert to fraction form
    12,185.34/16,816.23 = 6,880.74/x
  3. Step 3: Cross multiply
    12,185.34x = 16,816.23 × 6,880.74
  4. Step 4: Simplify right side
    12,185.34x = 115,708,106.41
  5. Step 5: Solve for x
    x = 115,708,106.41/12,185.34
  6. Step 6: Final answer
    x = 9,495.68

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Half scale
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Double 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.