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Finding the Fourth Proportional to 11,345.70, 17,016.30 and 10,783.10

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Solution

The fourth proportional to 11,345.70, 17,016.30 and 10,783.10 is: 16,172.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,345.70 : 17,016.30 = 10,783.10 : x
  2. Step 2: Convert to fraction form
    11,345.70/17,016.30 = 10,783.10/x
  3. Step 3: Cross multiply
    11,345.70x = 17,016.30 × 10,783.10
  4. Step 4: Simplify right side
    11,345.70x = 183,488,464.53
  5. Step 5: Solve for x
    x = 183,488,464.53/11,345.70
  6. Step 6: Final answer
    x = 16,172.51

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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.