Home / 11,275.56-15,560.85-6,800.76

Finding the Fourth Proportional to 11,275.56, 15,560.85 and 6,800.76

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Solution

The fourth proportional to 11,275.56, 15,560.85 and 6,800.76 is: 9,385.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,275.56 : 15,560.85 = 6,800.76 : x
  2. Step 2: Convert to fraction form
    11,275.56/15,560.85 = 6,800.76/x
  3. Step 3: Cross multiply
    11,275.56x = 15,560.85 × 6,800.76
  4. Step 4: Simplify right side
    11,275.56x = 105,825,606.25
  5. Step 5: Solve for x
    x = 105,825,606.25/11,275.56
  6. Step 6: Final answer
    x = 9,385.40

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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.