Home / 11,785.04-17,689.85-5,215.84

Finding the Fourth Proportional to 11,785.04, 17,689.85 and 5,215.84

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Solution

The fourth proportional to 11,785.04, 17,689.85 and 5,215.84 is: 7,829.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,785.04 : 17,689.85 = 5,215.84 : x
  2. Step 2: Convert to fraction form
    11,785.04/17,689.85 = 5,215.84/x
  3. Step 3: Cross multiply
    11,785.04x = 17,689.85 × 5,215.84
  4. Step 4: Simplify right side
    11,785.04x = 92,267,396.04
  5. Step 5: Solve for x
    x = 92,267,396.04/11,785.04
  6. Step 6: Final answer
    x = 7,829.20

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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.