Home / 8,123.29-12,185.37-2,577.08

Finding the Fourth Proportional to 8,123.29, 12,185.37 and 2,577.08

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Solution

The fourth proportional to 8,123.29, 12,185.37 and 2,577.08 is: 3,865.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,123.29 : 12,185.37 = 2,577.08 : x
  2. Step 2: Convert to fraction form
    8,123.29/12,185.37 = 2,577.08/x
  3. Step 3: Cross multiply
    8,123.29x = 12,185.37 × 2,577.08
  4. Step 4: Simplify right side
    8,123.29x = 31,402,635.24
  5. Step 5: Solve for x
    x = 31,402,635.24/8,123.29
  6. Step 6: Final answer
    x = 3,865.75

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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.