Home / 13,268.71-19,886.66-6,696.78

Finding the Fourth Proportional to 13,268.71, 19,886.66 and 6,696.78

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Solution

The fourth proportional to 13,268.71, 19,886.66 and 6,696.78 is: 10,036.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,268.71 : 19,886.66 = 6,696.78 : x
  2. Step 2: Convert to fraction form
    13,268.71/19,886.66 = 6,696.78/x
  3. Step 3: Cross multiply
    13,268.71x = 19,886.66 × 6,696.78
  4. Step 4: Simplify right side
    13,268.71x = 133,176,541.68
  5. Step 5: Solve for x
    x = 133,176,541.68/13,268.71
  6. Step 6: Final answer
    x = 10,036.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.