Home / 12,763.83-17,615.63-7,727.92

Finding the Fourth Proportional to 12,763.83, 17,615.63 and 7,727.92

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Solution

The fourth proportional to 12,763.83, 17,615.63 and 7,727.92 is: 10,665.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,763.83 : 17,615.63 = 7,727.92 : x
  2. Step 2: Convert to fraction form
    12,763.83/17,615.63 = 7,727.92/x
  3. Step 3: Cross multiply
    12,763.83x = 17,615.63 × 7,727.92
  4. Step 4: Simplify right side
    12,763.83x = 136,132,220.73
  5. Step 5: Solve for x
    x = 136,132,220.73/12,763.83
  6. Step 6: Final answer
    x = 10,665.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.