Home / 12,637.83-18,919.29-9,365.61

Finding the Fourth Proportional to 12,637.83, 18,919.29 and 9,365.61

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Solution

The fourth proportional to 12,637.83, 18,919.29 and 9,365.61 is: 14,020.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,637.83 : 18,919.29 = 9,365.61 : x
  2. Step 2: Convert to fraction form
    12,637.83/18,919.29 = 9,365.61/x
  3. Step 3: Cross multiply
    12,637.83x = 18,919.29 × 9,365.61
  4. Step 4: Simplify right side
    12,637.83x = 177,190,691.62
  5. Step 5: Solve for x
    x = 177,190,691.62/12,637.83
  6. Step 6: Final answer
    x = 14,020.66

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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.