Home / 13,284.60-19,926.90-8,878.20

Finding the Fourth Proportional to 13,284.60, 19,926.90 and 8,878.20

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Solution

The fourth proportional to 13,284.60, 19,926.90 and 8,878.20 is: 13,317.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,284.60 : 19,926.90 = 8,878.20 : x
  2. Step 2: Convert to fraction form
    13,284.60/19,926.90 = 8,878.20/x
  3. Step 3: Cross multiply
    13,284.60x = 19,926.90 × 8,878.20
  4. Step 4: Simplify right side
    13,284.60x = 176,915,003.58
  5. Step 5: Solve for x
    x = 176,915,003.58/13,284.60
  6. Step 6: Final answer
    x = 13,317.30

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Similar ratio
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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.