Home / 7,620.40-11,422.68-4,700.76

Finding the Fourth Proportional to 7,620.40, 11,422.68 and 4,700.76

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Solution

The fourth proportional to 7,620.40, 11,422.68 and 4,700.76 is: 7,046.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,620.40 : 11,422.68 = 4,700.76 : x
  2. Step 2: Convert to fraction form
    7,620.40/11,422.68 = 4,700.76/x
  3. Step 3: Cross multiply
    7,620.40x = 11,422.68 × 4,700.76
  4. Step 4: Simplify right side
    7,620.40x = 53,695,277.24
  5. Step 5: Solve for x
    x = 53,695,277.24/7,620.40
  6. Step 6: Final answer
    x = 7,046.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.