Home / 11,788.81-16,275.26-7,815.29

Finding the Fourth Proportional to 11,788.81, 16,275.26 and 7,815.29

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Solution

The fourth proportional to 11,788.81, 16,275.26 and 7,815.29 is: 10,789.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,788.81 : 16,275.26 = 7,815.29 : x
  2. Step 2: Convert to fraction form
    11,788.81/16,275.26 = 7,815.29/x
  3. Step 3: Cross multiply
    11,788.81x = 16,275.26 × 7,815.29
  4. Step 4: Simplify right side
    11,788.81x = 127,195,814.89
  5. Step 5: Solve for x
    x = 127,195,814.89/11,788.81
  6. Step 6: Final answer
    x = 10,789.54

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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.