Home / 8,515.77-12,776.36-4,618.05

Finding the Fourth Proportional to 8,515.77, 12,776.36 and 4,618.05

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Solution

The fourth proportional to 8,515.77, 12,776.36 and 4,618.05 is: 6,928.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,515.77 : 12,776.36 = 4,618.05 : x
  2. Step 2: Convert to fraction form
    8,515.77/12,776.36 = 4,618.05/x
  3. Step 3: Cross multiply
    8,515.77x = 12,776.36 × 4,618.05
  4. Step 4: Simplify right side
    8,515.77x = 59,001,846.21
  5. Step 5: Solve for x
    x = 59,001,846.21/8,515.77
  6. Step 6: Final answer
    x = 6,928.54

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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.