Home / 11,304.50-16,956.95-4,287.78

Finding the Fourth Proportional to 11,304.50, 16,956.95 and 4,287.78

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Solution

The fourth proportional to 11,304.50, 16,956.95 and 4,287.78 is: 6,431.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,304.50 : 16,956.95 = 4,287.78 : x
  2. Step 2: Convert to fraction form
    11,304.50/16,956.95 = 4,287.78/x
  3. Step 3: Cross multiply
    11,304.50x = 16,956.95 × 4,287.78
  4. Step 4: Simplify right side
    11,304.50x = 72,707,649.63
  5. Step 5: Solve for x
    x = 72,707,649.63/11,304.50
  6. Step 6: Final answer
    x = 6,431.75

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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.