Home / 8,779.96-12,117.45-5,004.48

Finding the Fourth Proportional to 8,779.96, 12,117.45 and 5,004.48

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Solution

The fourth proportional to 8,779.96, 12,117.45 and 5,004.48 is: 6,906.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,779.96 : 12,117.45 = 5,004.48 : x
  2. Step 2: Convert to fraction form
    8,779.96/12,117.45 = 5,004.48/x
  3. Step 3: Cross multiply
    8,779.96x = 12,117.45 × 5,004.48
  4. Step 4: Simplify right side
    8,779.96x = 60,641,536.18
  5. Step 5: Solve for x
    x = 60,641,536.18/8,779.96
  6. Step 6: Final answer
    x = 6,906.81

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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.