Home / 11,260.68-15,525.16-7,717.56

Finding the Fourth Proportional to 11,260.68, 15,525.16 and 7,717.56

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Solution

The fourth proportional to 11,260.68, 15,525.16 and 7,717.56 is: 10,640.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,260.68 : 15,525.16 = 7,717.56 : x
  2. Step 2: Convert to fraction form
    11,260.68/15,525.16 = 7,717.56/x
  3. Step 3: Cross multiply
    11,260.68x = 15,525.16 × 7,717.56
  4. Step 4: Simplify right side
    11,260.68x = 119,816,353.81
  5. Step 5: Solve for x
    x = 119,816,353.81/11,260.68
  6. Step 6: Final answer
    x = 10,640.24

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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.