Home / 9,261.57-12,780.89-5,012.55

Finding the Fourth Proportional to 9,261.57, 12,780.89 and 5,012.55

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Solution

The fourth proportional to 9,261.57, 12,780.89 and 5,012.55 is: 6,917.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,261.57 : 12,780.89 = 5,012.55 : x
  2. Step 2: Convert to fraction form
    9,261.57/12,780.89 = 5,012.55/x
  3. Step 3: Cross multiply
    9,261.57x = 12,780.89 × 5,012.55
  4. Step 4: Simplify right side
    9,261.57x = 64,064,843.90
  5. Step 5: Solve for x
    x = 64,064,843.90/9,261.57
  6. Step 6: Final answer
    x = 6,917.27

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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.