Home / 11,918.10-17,864.18-4,984.50

Finding the Fourth Proportional to 11,918.10, 17,864.18 and 4,984.50

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Solution

The fourth proportional to 11,918.10, 17,864.18 and 4,984.50 is: 7,471.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,918.10 : 17,864.18 = 4,984.50 : x
  2. Step 2: Convert to fraction form
    11,918.10/17,864.18 = 4,984.50/x
  3. Step 3: Cross multiply
    11,918.10x = 17,864.18 × 4,984.50
  4. Step 4: Simplify right side
    11,918.10x = 89,044,005.21
  5. Step 5: Solve for x
    x = 89,044,005.21/11,918.10
  6. Step 6: Final answer
    x = 7,471.33

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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.