Home / 12,861.60-19,292.40-5,466.30

Finding the Fourth Proportional to 12,861.60, 19,292.40 and 5,466.30

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Solution

The fourth proportional to 12,861.60, 19,292.40 and 5,466.30 is: 8,199.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,861.60 : 19,292.40 = 5,466.30 : x
  2. Step 2: Convert to fraction form
    12,861.60/19,292.40 = 5,466.30/x
  3. Step 3: Cross multiply
    12,861.60x = 19,292.40 × 5,466.30
  4. Step 4: Simplify right side
    12,861.60x = 105,458,046.12
  5. Step 5: Solve for x
    x = 105,458,046.12/12,861.60
  6. Step 6: Final answer
    x = 8,199.45

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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.