Home / 12,892.80-19,335.08-4,125.62

Finding the Fourth Proportional to 12,892.80, 19,335.08 and 4,125.62

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Solution

The fourth proportional to 12,892.80, 19,335.08 and 4,125.62 is: 6,187.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,892.80 : 19,335.08 = 4,125.62 : x
  2. Step 2: Convert to fraction form
    12,892.80/19,335.08 = 4,125.62/x
  3. Step 3: Cross multiply
    12,892.80x = 19,335.08 × 4,125.62
  4. Step 4: Simplify right side
    12,892.80x = 79,769,192.75
  5. Step 5: Solve for x
    x = 79,769,192.75/12,892.80
  6. Step 6: Final answer
    x = 6,187.11

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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.