Home / 11,718.14-16,177.72-7,750.76

Finding the Fourth Proportional to 11,718.14, 16,177.72 and 7,750.76

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Solution

The fourth proportional to 11,718.14, 16,177.72 and 7,750.76 is: 10,700.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,718.14 : 16,177.72 = 7,750.76 : x
  2. Step 2: Convert to fraction form
    11,718.14/16,177.72 = 7,750.76/x
  3. Step 3: Cross multiply
    11,718.14x = 16,177.72 × 7,750.76
  4. Step 4: Simplify right side
    11,718.14x = 125,389,625.07
  5. Step 5: Solve for x
    x = 125,389,625.07/11,718.14
  6. Step 6: Final answer
    x = 10,700.47

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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.