Home / 7,151.12-9,868.68-4,006.96

Finding the Fourth Proportional to 7,151.12, 9,868.68 and 4,006.96

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Solution

The fourth proportional to 7,151.12, 9,868.68 and 4,006.96 is: 5,529.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,151.12 : 9,868.68 = 4,006.96 : x
  2. Step 2: Convert to fraction form
    7,151.12/9,868.68 = 4,006.96/x
  3. Step 3: Cross multiply
    7,151.12x = 9,868.68 × 4,006.96
  4. Step 4: Simplify right side
    7,151.12x = 39,543,406.01
  5. Step 5: Solve for x
    x = 39,543,406.01/7,151.12
  6. Step 6: Final answer
    x = 5,529.68

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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.