Home / 12,763.28-17,613.70-7,020.44

Finding the Fourth Proportional to 12,763.28, 17,613.70 and 7,020.44

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Solution

The fourth proportional to 12,763.28, 17,613.70 and 7,020.44 is: 9,688.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,763.28 : 17,613.70 = 7,020.44 : x
  2. Step 2: Convert to fraction form
    12,763.28/17,613.70 = 7,020.44/x
  3. Step 3: Cross multiply
    12,763.28x = 17,613.70 × 7,020.44
  4. Step 4: Simplify right side
    12,763.28x = 123,655,924.03
  5. Step 5: Solve for x
    x = 123,655,924.03/12,763.28
  6. Step 6: Final answer
    x = 9,688.41

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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.