Home / 8,157.11-11,256.77-4,620.65

Finding the Fourth Proportional to 8,157.11, 11,256.77 and 4,620.65

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Solution

The fourth proportional to 8,157.11, 11,256.77 and 4,620.65 is: 6,376.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,157.11 : 11,256.77 = 4,620.65 : x
  2. Step 2: Convert to fraction form
    8,157.11/11,256.77 = 4,620.65/x
  3. Step 3: Cross multiply
    8,157.11x = 11,256.77 × 4,620.65
  4. Step 4: Simplify right side
    8,157.11x = 52,013,549.57
  5. Step 5: Solve for x
    x = 52,013,549.57/8,157.11
  6. Step 6: Final answer
    x = 6,376.47

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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.