Home / 7,109.23-9,812.68-4,124.47

Finding the Fourth Proportional to 7,109.23, 9,812.68 and 4,124.47

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Solution

The fourth proportional to 7,109.23, 9,812.68 and 4,124.47 is: 5,692.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,109.23 : 9,812.68 = 4,124.47 : x
  2. Step 2: Convert to fraction form
    7,109.23/9,812.68 = 4,124.47/x
  3. Step 3: Cross multiply
    7,109.23x = 9,812.68 × 4,124.47
  4. Step 4: Simplify right side
    7,109.23x = 40,472,105.24
  5. Step 5: Solve for x
    x = 40,472,105.24/7,109.23
  6. Step 6: Final answer
    x = 5,692.90

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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.