Home / 11,487.81-17,235.20-3,590.02

Finding the Fourth Proportional to 11,487.81, 17,235.20 and 3,590.02

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Solution

The fourth proportional to 11,487.81, 17,235.20 and 3,590.02 is: 5,386.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,487.81 : 17,235.20 = 3,590.02 : x
  2. Step 2: Convert to fraction form
    11,487.81/17,235.20 = 3,590.02/x
  3. Step 3: Cross multiply
    11,487.81x = 17,235.20 × 3,590.02
  4. Step 4: Simplify right side
    11,487.81x = 61,874,712.70
  5. Step 5: Solve for x
    x = 61,874,712.70/11,487.81
  6. Step 6: Final answer
    x = 5,386.12

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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.