Home / 12,180.36-16,809.06-6,802.56

Finding the Fourth Proportional to 12,180.36, 16,809.06 and 6,802.56

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Solution

The fourth proportional to 12,180.36, 16,809.06 and 6,802.56 is: 9,387.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,180.36 : 16,809.06 = 6,802.56 : x
  2. Step 2: Convert to fraction form
    12,180.36/16,809.06 = 6,802.56/x
  3. Step 3: Cross multiply
    12,180.36x = 16,809.06 × 6,802.56
  4. Step 4: Simplify right side
    12,180.36x = 114,344,639.19
  5. Step 5: Solve for x
    x = 114,344,639.19/12,180.36
  6. Step 6: Final answer
    x = 9,387.62

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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.