Home / 8,270.88-11,430.18-6,776.43

Finding the Fourth Proportional to 8,270.88, 11,430.18 and 6,776.43

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Solution

The fourth proportional to 8,270.88, 11,430.18 and 6,776.43 is: 9,364.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,270.88 : 11,430.18 = 6,776.43 : x
  2. Step 2: Convert to fraction form
    8,270.88/11,430.18 = 6,776.43/x
  3. Step 3: Cross multiply
    8,270.88x = 11,430.18 × 6,776.43
  4. Step 4: Simplify right side
    8,270.88x = 77,455,814.66
  5. Step 5: Solve for x
    x = 77,455,814.66/8,270.88
  6. Step 6: Final answer
    x = 9,364.88

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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.