Home / 12,892.60-19,317.30-8,507.80

Finding the Fourth Proportional to 12,892.60, 19,317.30 and 8,507.80

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Solution

The fourth proportional to 12,892.60, 19,317.30 and 8,507.80 is: 12,747.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,892.60 : 19,317.30 = 8,507.80 : x
  2. Step 2: Convert to fraction form
    12,892.60/19,317.30 = 8,507.80/x
  3. Step 3: Cross multiply
    12,892.60x = 19,317.30 × 8,507.80
  4. Step 4: Simplify right side
    12,892.60x = 164,347,724.94
  5. Step 5: Solve for x
    x = 164,347,724.94/12,892.60
  6. Step 6: Final answer
    x = 12,747.45

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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.