Home / 11,321.72-16,977.12-4,746.14

Finding the Fourth Proportional to 11,321.72, 16,977.12 and 4,746.14

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Solution

The fourth proportional to 11,321.72, 16,977.12 and 4,746.14 is: 7,116.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,321.72 : 16,977.12 = 4,746.14 : x
  2. Step 2: Convert to fraction form
    11,321.72/16,977.12 = 4,746.14/x
  3. Step 3: Cross multiply
    11,321.72x = 16,977.12 × 4,746.14
  4. Step 4: Simplify right side
    11,321.72x = 80,575,776.45
  5. Step 5: Solve for x
    x = 80,575,776.45/11,321.72
  6. Step 6: Final answer
    x = 7,116.92

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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.