Home / 11,910.90-17,868.92-3,590.28

Finding the Fourth Proportional to 11,910.90, 17,868.92 and 3,590.28

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Solution

The fourth proportional to 11,910.90, 17,868.92 and 3,590.28 is: 5,386.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,910.90 : 17,868.92 = 3,590.28 : x
  2. Step 2: Convert to fraction form
    11,910.90/17,868.92 = 3,590.28/x
  3. Step 3: Cross multiply
    11,910.90x = 17,868.92 × 3,590.28
  4. Step 4: Simplify right side
    11,910.90x = 64,154,426.10
  5. Step 5: Solve for x
    x = 64,154,426.10/11,910.90
  6. Step 6: Final answer
    x = 5,386.19

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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.