Home / 7,886.58-11,815.50-4,589.68

Finding the Fourth Proportional to 7,886.58, 11,815.50 and 4,589.68

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Solution

The fourth proportional to 7,886.58, 11,815.50 and 4,589.68 is: 6,876.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,886.58 : 11,815.50 = 4,589.68 : x
  2. Step 2: Convert to fraction form
    7,886.58/11,815.50 = 4,589.68/x
  3. Step 3: Cross multiply
    7,886.58x = 11,815.50 × 4,589.68
  4. Step 4: Simplify right side
    7,886.58x = 54,229,364.04
  5. Step 5: Solve for x
    x = 54,229,364.04/7,886.58
  6. Step 6: Final answer
    x = 6,876.16

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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.