Home / 8,779.20-12,113.97-4,950.68

Finding the Fourth Proportional to 8,779.20, 12,113.97 and 4,950.68

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Solution

The fourth proportional to 8,779.20, 12,113.97 and 4,950.68 is: 6,831.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,779.20 : 12,113.97 = 4,950.68 : x
  2. Step 2: Convert to fraction form
    8,779.20/12,113.97 = 4,950.68/x
  3. Step 3: Cross multiply
    8,779.20x = 12,113.97 × 4,950.68
  4. Step 4: Simplify right side
    8,779.20x = 59,972,309.86
  5. Step 5: Solve for x
    x = 59,972,309.86/8,779.20
  6. Step 6: Final answer
    x = 6,831.18

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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.