Home / 7,156.92-9,877.14-4,012.68

Finding the Fourth Proportional to 7,156.92, 9,877.14 and 4,012.68

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Solution

The fourth proportional to 7,156.92, 9,877.14 and 4,012.68 is: 5,537.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,156.92 : 9,877.14 = 4,012.68 : x
  2. Step 2: Convert to fraction form
    7,156.92/9,877.14 = 4,012.68/x
  3. Step 3: Cross multiply
    7,156.92x = 9,877.14 × 4,012.68
  4. Step 4: Simplify right side
    7,156.92x = 39,633,802.14
  5. Step 5: Solve for x
    x = 39,633,802.14/7,156.92
  6. Step 6: Final answer
    x = 5,537.83

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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.