Home / 8,071.29-11,124.68-6,156.45

Finding the Fourth Proportional to 8,071.29, 11,124.68 and 6,156.45

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Solution

The fourth proportional to 8,071.29, 11,124.68 and 6,156.45 is: 8,485.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,071.29 : 11,124.68 = 6,156.45 : x
  2. Step 2: Convert to fraction form
    8,071.29/11,124.68 = 6,156.45/x
  3. Step 3: Cross multiply
    8,071.29x = 11,124.68 × 6,156.45
  4. Step 4: Simplify right side
    8,071.29x = 68,488,505.40
  5. Step 5: Solve for x
    x = 68,488,505.40/8,071.29
  6. Step 6: Final answer
    x = 8,485.45

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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.