Home / 8,430.89-11,634.84-4,654.10

Finding the Fourth Proportional to 8,430.89, 11,634.84 and 4,654.10

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Solution

The fourth proportional to 8,430.89, 11,634.84 and 4,654.10 is: 6,422.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,430.89 : 11,634.84 = 4,654.10 : x
  2. Step 2: Convert to fraction form
    8,430.89/11,634.84 = 4,654.10/x
  3. Step 3: Cross multiply
    8,430.89x = 11,634.84 × 4,654.10
  4. Step 4: Simplify right side
    8,430.89x = 54,149,737.93
  5. Step 5: Solve for x
    x = 54,149,737.93/8,430.89
  6. Step 6: Final answer
    x = 6,422.78

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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.