Home / 8,779.89-13,170.24-4,881.36

Finding the Fourth Proportional to 8,779.89, 13,170.24 and 4,881.36

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Solution

The fourth proportional to 8,779.89, 13,170.24 and 4,881.36 is: 7,322.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,779.89 : 13,170.24 = 4,881.36 : x
  2. Step 2: Convert to fraction form
    8,779.89/13,170.24 = 4,881.36/x
  3. Step 3: Cross multiply
    8,779.89x = 13,170.24 × 4,881.36
  4. Step 4: Simplify right side
    8,779.89x = 64,288,682.73
  5. Step 5: Solve for x
    x = 64,288,682.73/8,779.89
  6. Step 6: Final answer
    x = 7,322.27

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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.