Home / 8,820.86-13,230.95-2,977.38

Finding the Fourth Proportional to 8,820.86, 13,230.95 and 2,977.38

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Solution

The fourth proportional to 8,820.86, 13,230.95 and 2,977.38 is: 4,465.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,820.86 : 13,230.95 = 2,977.38 : x
  2. Step 2: Convert to fraction form
    8,820.86/13,230.95 = 2,977.38/x
  3. Step 3: Cross multiply
    8,820.86x = 13,230.95 × 2,977.38
  4. Step 4: Simplify right side
    8,820.86x = 39,393,551.02
  5. Step 5: Solve for x
    x = 39,393,551.02/8,820.86
  6. Step 6: Final answer
    x = 4,465.96

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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.