Home / 12,124.08-16,730.55-6,818.99

Finding the Fourth Proportional to 12,124.08, 16,730.55 and 6,818.99

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Solution

The fourth proportional to 12,124.08, 16,730.55 and 6,818.99 is: 9,409.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,124.08 : 16,730.55 = 6,818.99 : x
  2. Step 2: Convert to fraction form
    12,124.08/16,730.55 = 6,818.99/x
  3. Step 3: Cross multiply
    12,124.08x = 16,730.55 × 6,818.99
  4. Step 4: Simplify right side
    12,124.08x = 114,085,369.49
  5. Step 5: Solve for x
    x = 114,085,369.49/12,124.08
  6. Step 6: Final answer
    x = 9,409.82

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Half scale
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Double scale
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Similar ratio
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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.