Home / 8,439.23-11,646.78-4,855.29

Finding the Fourth Proportional to 8,439.23, 11,646.78 and 4,855.29

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Solution

The fourth proportional to 8,439.23, 11,646.78 and 4,855.29 is: 6,700.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,439.23 : 11,646.78 = 4,855.29 : x
  2. Step 2: Convert to fraction form
    8,439.23/11,646.78 = 4,855.29/x
  3. Step 3: Cross multiply
    8,439.23x = 11,646.78 × 4,855.29
  4. Step 4: Simplify right side
    8,439.23x = 56,548,432.58
  5. Step 5: Solve for x
    x = 56,548,432.58/8,439.23
  6. Step 6: Final answer
    x = 6,700.66

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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.