Home / 11,678.72-17,518.14-2,913.30

Finding the Fourth Proportional to 11,678.72, 17,518.14 and 2,913.30

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Solution

The fourth proportional to 11,678.72, 17,518.14 and 2,913.30 is: 4,369.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,678.72 : 17,518.14 = 2,913.30 : x
  2. Step 2: Convert to fraction form
    11,678.72/17,518.14 = 2,913.30/x
  3. Step 3: Cross multiply
    11,678.72x = 17,518.14 × 2,913.30
  4. Step 4: Simplify right side
    11,678.72x = 51,035,597.26
  5. Step 5: Solve for x
    x = 51,035,597.26/11,678.72
  6. Step 6: Final answer
    x = 4,369.97

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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.