Home / 7,730.24-10,661.28-6,330.56

Finding the Fourth Proportional to 7,730.24, 10,661.28 and 6,330.56

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Solution

The fourth proportional to 7,730.24, 10,661.28 and 6,330.56 is: 8,730.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,730.24 : 10,661.28 = 6,330.56 : x
  2. Step 2: Convert to fraction form
    7,730.24/10,661.28 = 6,330.56/x
  3. Step 3: Cross multiply
    7,730.24x = 10,661.28 × 6,330.56
  4. Step 4: Simplify right side
    7,730.24x = 67,491,872.72
  5. Step 5: Solve for x
    x = 67,491,872.72/7,730.24
  6. Step 6: Final answer
    x = 8,730.89

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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.