Home / 9,727.48-13,424.70-7,478.92

Finding the Fourth Proportional to 9,727.48, 13,424.70 and 7,478.92

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Solution

The fourth proportional to 9,727.48, 13,424.70 and 7,478.92 is: 10,321.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,727.48 : 13,424.70 = 7,478.92 : x
  2. Step 2: Convert to fraction form
    9,727.48/13,424.70 = 7,478.92/x
  3. Step 3: Cross multiply
    9,727.48x = 13,424.70 × 7,478.92
  4. Step 4: Simplify right side
    9,727.48x = 100,402,257.32
  5. Step 5: Solve for x
    x = 100,402,257.32/9,727.48
  6. Step 6: Final answer
    x = 10,321.51

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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.