Home / 10,785.67-16,178.70-2,994.49

Finding the Fourth Proportional to 10,785.67, 16,178.70 and 2,994.49

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Solution

The fourth proportional to 10,785.67, 16,178.70 and 2,994.49 is: 4,491.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,785.67 : 16,178.70 = 2,994.49 : x
  2. Step 2: Convert to fraction form
    10,785.67/16,178.70 = 2,994.49/x
  3. Step 3: Cross multiply
    10,785.67x = 16,178.70 × 2,994.49
  4. Step 4: Simplify right side
    10,785.67x = 48,446,955.36
  5. Step 5: Solve for x
    x = 48,446,955.36/10,785.67
  6. Step 6: Final answer
    x = 4,491.79

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.