Home / 10,896.12-15,040.86-8,528.76

Finding the Fourth Proportional to 10,896.12, 15,040.86 and 8,528.76

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Solution

The fourth proportional to 10,896.12, 15,040.86 and 8,528.76 is: 11,772.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,896.12 : 15,040.86 = 8,528.76 : x
  2. Step 2: Convert to fraction form
    10,896.12/15,040.86 = 8,528.76/x
  3. Step 3: Cross multiply
    10,896.12x = 15,040.86 × 8,528.76
  4. Step 4: Simplify right side
    10,896.12x = 128,279,885.13
  5. Step 5: Solve for x
    x = 128,279,885.13/10,896.12
  6. Step 6: Final answer
    x = 11,772.99

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Half scale
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Double scale
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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.