Home / 9,261.86-12,780.90-5,282.82

Finding the Fourth Proportional to 9,261.86, 12,780.90 and 5,282.82

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Solution

The fourth proportional to 9,261.86, 12,780.90 and 5,282.82 is: 7,290.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,261.86 : 12,780.90 = 5,282.82 : x
  2. Step 2: Convert to fraction form
    9,261.86/12,780.90 = 5,282.82/x
  3. Step 3: Cross multiply
    9,261.86x = 12,780.90 × 5,282.82
  4. Step 4: Simplify right side
    9,261.86x = 67,519,194.14
  5. Step 5: Solve for x
    x = 67,519,194.14/9,261.86
  6. Step 6: Final answer
    x = 7,290.03

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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.