Home / 19,116.16-28,641.88-11,705.15

Finding the Fourth Proportional to 19,116.16, 28,641.88 and 11,705.15

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Solution

The fourth proportional to 19,116.16, 28,641.88 and 11,705.15 is: 17,537.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,116.16 : 28,641.88 = 11,705.15 : x
  2. Step 2: Convert to fraction form
    19,116.16/28,641.88 = 11,705.15/x
  3. Step 3: Cross multiply
    19,116.16x = 28,641.88 × 11,705.15
  4. Step 4: Simplify right side
    19,116.16x = 335,257,329.21
  5. Step 5: Solve for x
    x = 335,257,329.21/19,116.16
  6. Step 6: Final answer
    x = 17,537.90

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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.