Home / 12,106.68-16,708.30-6,802.80

Finding the Fourth Proportional to 12,106.68, 16,708.30 and 6,802.80

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Solution

The fourth proportional to 12,106.68, 16,708.30 and 6,802.80 is: 9,388.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,106.68 : 16,708.30 = 6,802.80 : x
  2. Step 2: Convert to fraction form
    12,106.68/16,708.30 = 6,802.80/x
  3. Step 3: Cross multiply
    12,106.68x = 16,708.30 × 6,802.80
  4. Step 4: Simplify right side
    12,106.68x = 113,663,223.24
  5. Step 5: Solve for x
    x = 113,663,223.24/12,106.68
  6. Step 6: Final answer
    x = 9,388.47

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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.