Home / 8,179.61-11,290.41-4,645.17

Finding the Fourth Proportional to 8,179.61, 11,290.41 and 4,645.17

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Solution

The fourth proportional to 8,179.61, 11,290.41 and 4,645.17 is: 6,411.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,179.61 : 11,290.41 = 4,645.17 : x
  2. Step 2: Convert to fraction form
    8,179.61/11,290.41 = 4,645.17/x
  3. Step 3: Cross multiply
    8,179.61x = 11,290.41 × 4,645.17
  4. Step 4: Simplify right side
    8,179.61x = 52,445,873.82
  5. Step 5: Solve for x
    x = 52,445,873.82/8,179.61
  6. Step 6: Final answer
    x = 6,411.79

Related Problems

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Half scale
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Double scale
Find fourth proportional to 8,180.61, 11,291.79 and 4,646.17
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.