Home / 11,386.62-17,104.21-10,720.80

Finding the Fourth Proportional to 11,386.62, 17,104.21 and 10,720.80

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Solution

The fourth proportional to 11,386.62, 17,104.21 and 10,720.80 is: 16,104.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,386.62 : 17,104.21 = 10,720.80 : x
  2. Step 2: Convert to fraction form
    11,386.62/17,104.21 = 10,720.80/x
  3. Step 3: Cross multiply
    11,386.62x = 17,104.21 × 10,720.80
  4. Step 4: Simplify right side
    11,386.62x = 183,370,787.77
  5. Step 5: Solve for x
    x = 183,370,787.77/11,386.62
  6. Step 6: Final answer
    x = 16,104.06

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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.