Home / 15,785.96-21,779.53-10,481.82

Finding the Fourth Proportional to 15,785.96, 21,779.53 and 10,481.82

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Solution

The fourth proportional to 15,785.96, 21,779.53 and 10,481.82 is: 14,461.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,785.96 : 21,779.53 = 10,481.82 : x
  2. Step 2: Convert to fraction form
    15,785.96/21,779.53 = 10,481.82/x
  3. Step 3: Cross multiply
    15,785.96x = 21,779.53 × 10,481.82
  4. Step 4: Simplify right side
    15,785.96x = 228,289,186.74
  5. Step 5: Solve for x
    x = 228,289,186.74/15,785.96
  6. Step 6: Final answer
    x = 14,461.54

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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.