Home / 8,513.05-12,758.48-4,349.55

Finding the Fourth Proportional to 8,513.05, 12,758.48 and 4,349.55

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Solution

The fourth proportional to 8,513.05, 12,758.48 and 4,349.55 is: 6,518.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,513.05 : 12,758.48 = 4,349.55 : x
  2. Step 2: Convert to fraction form
    8,513.05/12,758.48 = 4,349.55/x
  3. Step 3: Cross multiply
    8,513.05x = 12,758.48 × 4,349.55
  4. Step 4: Simplify right side
    8,513.05x = 55,493,593.40
  5. Step 5: Solve for x
    x = 55,493,593.40/8,513.05
  6. Step 6: Final answer
    x = 6,518.65

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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.