Home / 12,710.80-19,066.20-8,563.60

Finding the Fourth Proportional to 12,710.80, 19,066.20 and 8,563.60

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Solution

The fourth proportional to 12,710.80, 19,066.20 and 8,563.60 is: 12,845.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,710.80 : 19,066.20 = 8,563.60 : x
  2. Step 2: Convert to fraction form
    12,710.80/19,066.20 = 8,563.60/x
  3. Step 3: Cross multiply
    12,710.80x = 19,066.20 × 8,563.60
  4. Step 4: Simplify right side
    12,710.80x = 163,275,310.32
  5. Step 5: Solve for x
    x = 163,275,310.32/12,710.80
  6. Step 6: Final answer
    x = 12,845.40

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Double scale
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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.