Home / 7,865.75-10,854.60-4,508.48

Finding the Fourth Proportional to 7,865.75, 10,854.60 and 4,508.48

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Solution

The fourth proportional to 7,865.75, 10,854.60 and 4,508.48 is: 6,221.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,865.75 : 10,854.60 = 4,508.48 : x
  2. Step 2: Convert to fraction form
    7,865.75/10,854.60 = 4,508.48/x
  3. Step 3: Cross multiply
    7,865.75x = 10,854.60 × 4,508.48
  4. Step 4: Simplify right side
    7,865.75x = 48,937,692.74
  5. Step 5: Solve for x
    x = 48,937,692.74/7,865.75
  6. Step 6: Final answer
    x = 6,221.62

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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.