Home / 7,789.28-10,747.72-4,645.76

Finding the Fourth Proportional to 7,789.28, 10,747.72 and 4,645.76

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Solution

The fourth proportional to 7,789.28, 10,747.72 and 4,645.76 is: 6,410.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,789.28 : 10,747.72 = 4,645.76 : x
  2. Step 2: Convert to fraction form
    7,789.28/10,747.72 = 4,645.76/x
  3. Step 3: Cross multiply
    7,789.28x = 10,747.72 × 4,645.76
  4. Step 4: Simplify right side
    7,789.28x = 49,931,327.67
  5. Step 5: Solve for x
    x = 49,931,327.67/7,789.28
  6. Step 6: Final answer
    x = 6,410.26

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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.