Home / 8,290.40-11,441.36-4,754.72

Finding the Fourth Proportional to 8,290.40, 11,441.36 and 4,754.72

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Solution

The fourth proportional to 8,290.40, 11,441.36 and 4,754.72 is: 6,561.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,290.40 : 11,441.36 = 4,754.72 : x
  2. Step 2: Convert to fraction form
    8,290.40/11,441.36 = 4,754.72/x
  3. Step 3: Cross multiply
    8,290.40x = 11,441.36 × 4,754.72
  4. Step 4: Simplify right side
    8,290.40x = 54,400,463.22
  5. Step 5: Solve for x
    x = 54,400,463.22/8,290.40
  6. Step 6: Final answer
    x = 6,561.86

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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.