Home / 8,647.36-12,941.72-5,317.70

Finding the Fourth Proportional to 8,647.36, 12,941.72 and 5,317.70

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Solution

The fourth proportional to 8,647.36, 12,941.72 and 5,317.70 is: 7,958.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,647.36 : 12,941.72 = 5,317.70 : x
  2. Step 2: Convert to fraction form
    8,647.36/12,941.72 = 5,317.70/x
  3. Step 3: Cross multiply
    8,647.36x = 12,941.72 × 5,317.70
  4. Step 4: Simplify right side
    8,647.36x = 68,820,184.44
  5. Step 5: Solve for x
    x = 68,820,184.44/8,647.36
  6. Step 6: Final answer
    x = 7,958.52

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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.