Home / 12,685.64-19,028.45-4,892.63

Finding the Fourth Proportional to 12,685.64, 19,028.45 and 4,892.63

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Solution

The fourth proportional to 12,685.64, 19,028.45 and 4,892.63 is: 7,338.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,685.64 : 19,028.45 = 4,892.63 : x
  2. Step 2: Convert to fraction form
    12,685.64/19,028.45 = 4,892.63/x
  3. Step 3: Cross multiply
    12,685.64x = 19,028.45 × 4,892.63
  4. Step 4: Simplify right side
    12,685.64x = 93,099,082.41
  5. Step 5: Solve for x
    x = 93,099,082.41/12,685.64
  6. Step 6: Final answer
    x = 7,338.94

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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.