Home / 8,168.13-12,256.70-4,887.45

Finding the Fourth Proportional to 8,168.13, 12,256.70 and 4,887.45

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Solution

The fourth proportional to 8,168.13, 12,256.70 and 4,887.45 is: 7,333.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,168.13 : 12,256.70 = 4,887.45 : x
  2. Step 2: Convert to fraction form
    8,168.13/12,256.70 = 4,887.45/x
  3. Step 3: Cross multiply
    8,168.13x = 12,256.70 × 4,887.45
  4. Step 4: Simplify right side
    8,168.13x = 59,903,983.98
  5. Step 5: Solve for x
    x = 59,903,983.98/8,168.13
  6. Step 6: Final answer
    x = 7,333.87

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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.