Home / 11,619.40-17,429.10-2,854.20

Finding the Fourth Proportional to 11,619.40, 17,429.10 and 2,854.20

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Solution

The fourth proportional to 11,619.40, 17,429.10 and 2,854.20 is: 4,281.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,619.40 : 17,429.10 = 2,854.20 : x
  2. Step 2: Convert to fraction form
    11,619.40/17,429.10 = 2,854.20/x
  3. Step 3: Cross multiply
    11,619.40x = 17,429.10 × 2,854.20
  4. Step 4: Simplify right side
    11,619.40x = 49,746,137.22
  5. Step 5: Solve for x
    x = 49,746,137.22/11,619.40
  6. Step 6: Final answer
    x = 4,281.30

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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.