Home / 7,788.12-10,747.86-4,251.60

Finding the Fourth Proportional to 7,788.12, 10,747.86 and 4,251.60

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Solution

The fourth proportional to 7,788.12, 10,747.86 and 4,251.60 is: 5,867.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,788.12 : 10,747.86 = 4,251.60 : x
  2. Step 2: Convert to fraction form
    7,788.12/10,747.86 = 4,251.60/x
  3. Step 3: Cross multiply
    7,788.12x = 10,747.86 × 4,251.60
  4. Step 4: Simplify right side
    7,788.12x = 45,695,601.58
  5. Step 5: Solve for x
    x = 45,695,601.58/7,788.12
  6. Step 6: Final answer
    x = 5,867.35

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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.