Home / 8,778.90-13,173.59-3,156.10

Finding the Fourth Proportional to 8,778.90, 13,173.59 and 3,156.10

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Solution

The fourth proportional to 8,778.90, 13,173.59 and 3,156.10 is: 4,736.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,778.90 : 13,173.59 = 3,156.10 : x
  2. Step 2: Convert to fraction form
    8,778.90/13,173.59 = 3,156.10/x
  3. Step 3: Cross multiply
    8,778.90x = 13,173.59 × 3,156.10
  4. Step 4: Simplify right side
    8,778.90x = 41,577,167.40
  5. Step 5: Solve for x
    x = 41,577,167.40/8,778.90
  6. Step 6: Final answer
    x = 4,736.03

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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.