Home / 8,139.29-12,206.19-5,675.27

Finding the Fourth Proportional to 8,139.29, 12,206.19 and 5,675.27

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Solution

The fourth proportional to 8,139.29, 12,206.19 and 5,675.27 is: 8,510.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,139.29 : 12,206.19 = 5,675.27 : x
  2. Step 2: Convert to fraction form
    8,139.29/12,206.19 = 5,675.27/x
  3. Step 3: Cross multiply
    8,139.29x = 12,206.19 × 5,675.27
  4. Step 4: Simplify right side
    8,139.29x = 69,273,384.17
  5. Step 5: Solve for x
    x = 69,273,384.17/8,139.29
  6. Step 6: Final answer
    x = 8,510.99

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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.