Home / 8,507.44-11,739-4,780.72

Finding the Fourth Proportional to 8,507.44, 11,739 and 4,780.72

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Solution

The fourth proportional to 8,507.44, 11,739 and 4,780.72 is: 6,596.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,507.44 : 11,739 = 4,780.72 : x
  2. Step 2: Convert to fraction form
    8,507.44/11,739 = 4,780.72/x
  3. Step 3: Cross multiply
    8,507.44x = 11,739 × 4,780.72
  4. Step 4: Simplify right side
    8,507.44x = 56,120,872.08
  5. Step 5: Solve for x
    x = 56,120,872.08/8,507.44
  6. Step 6: Final answer
    x = 6,596.68

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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.