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Finding the Fourth Proportional to 7,854.03, 11,779.62 and 3,173.85

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Solution

The fourth proportional to 7,854.03, 11,779.62 and 3,173.85 is: 4,760.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,854.03 : 11,779.62 = 3,173.85 : x
  2. Step 2: Convert to fraction form
    7,854.03/11,779.62 = 3,173.85/x
  3. Step 3: Cross multiply
    7,854.03x = 11,779.62 × 3,173.85
  4. Step 4: Simplify right side
    7,854.03x = 37,386,746.94
  5. Step 5: Solve for x
    x = 37,386,746.94/7,854.03
  6. Step 6: Final answer
    x = 4,760.20

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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.