Home / 8,811.36-12,160.26-5,666.94

Finding the Fourth Proportional to 8,811.36, 12,160.26 and 5,666.94

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Solution

The fourth proportional to 8,811.36, 12,160.26 and 5,666.94 is: 7,820.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,811.36 : 12,160.26 = 5,666.94 : x
  2. Step 2: Convert to fraction form
    8,811.36/12,160.26 = 5,666.94/x
  3. Step 3: Cross multiply
    8,811.36x = 12,160.26 × 5,666.94
  4. Step 4: Simplify right side
    8,811.36x = 68,911,463.80
  5. Step 5: Solve for x
    x = 68,911,463.80/8,811.36
  6. Step 6: Final answer
    x = 7,820.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.