Home / 11,382.12-15,707.02-6,601.76

Finding the Fourth Proportional to 11,382.12, 15,707.02 and 6,601.76

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Solution

The fourth proportional to 11,382.12, 15,707.02 and 6,601.76 is: 9,110.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,382.12 : 15,707.02 = 6,601.76 : x
  2. Step 2: Convert to fraction form
    11,382.12/15,707.02 = 6,601.76/x
  3. Step 3: Cross multiply
    11,382.12x = 15,707.02 × 6,601.76
  4. Step 4: Simplify right side
    11,382.12x = 103,693,976.36
  5. Step 5: Solve for x
    x = 103,693,976.36/11,382.12
  6. Step 6: Final answer
    x = 9,110.25

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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.