Home / 8,505.92-12,756.57-5,381.23

Finding the Fourth Proportional to 8,505.92, 12,756.57 and 5,381.23

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Solution

The fourth proportional to 8,505.92, 12,756.57 and 5,381.23 is: 8,070.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,505.92 : 12,756.57 = 5,381.23 : x
  2. Step 2: Convert to fraction form
    8,505.92/12,756.57 = 5,381.23/x
  3. Step 3: Cross multiply
    8,505.92x = 12,756.57 × 5,381.23
  4. Step 4: Simplify right side
    8,505.92x = 68,646,037.18
  5. Step 5: Solve for x
    x = 68,646,037.18/8,505.92
  6. Step 6: Final answer
    x = 8,070.38

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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.