Home / 8,486.37-12,729.76-5,000.87

Finding the Fourth Proportional to 8,486.37, 12,729.76 and 5,000.87

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Solution

The fourth proportional to 8,486.37, 12,729.76 and 5,000.87 is: 7,501.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,486.37 : 12,729.76 = 5,000.87 : x
  2. Step 2: Convert to fraction form
    8,486.37/12,729.76 = 5,000.87/x
  3. Step 3: Cross multiply
    8,486.37x = 12,729.76 × 5,000.87
  4. Step 4: Simplify right side
    8,486.37x = 63,659,894.21
  5. Step 5: Solve for x
    x = 63,659,894.21/8,486.37
  6. Step 6: Final answer
    x = 7,501.43

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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.