Home / 11,345.04-15,650.04-6,628.56

Finding the Fourth Proportional to 11,345.04, 15,650.04 and 6,628.56

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Solution

The fourth proportional to 11,345.04, 15,650.04 and 6,628.56 is: 9,143.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,345.04 : 15,650.04 = 6,628.56 : x
  2. Step 2: Convert to fraction form
    11,345.04/15,650.04 = 6,628.56/x
  3. Step 3: Cross multiply
    11,345.04x = 15,650.04 × 6,628.56
  4. Step 4: Simplify right side
    11,345.04x = 103,737,229.14
  5. Step 5: Solve for x
    x = 103,737,229.14/11,345.04
  6. Step 6: Final answer
    x = 9,143.84

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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.