Home / 6,686.50-9,217.72-4,690.86

Finding the Fourth Proportional to 6,686.50, 9,217.72 and 4,690.86

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Solution

The fourth proportional to 6,686.50, 9,217.72 and 4,690.86 is: 6,466.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,686.50 : 9,217.72 = 4,690.86 : x
  2. Step 2: Convert to fraction form
    6,686.50/9,217.72 = 4,690.86/x
  3. Step 3: Cross multiply
    6,686.50x = 9,217.72 × 4,690.86
  4. Step 4: Simplify right side
    6,686.50x = 43,239,034.04
  5. Step 5: Solve for x
    x = 43,239,034.04/6,686.50
  6. Step 6: Final answer
    x = 6,466.62

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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.