Home / 14,682.39-20,261.12-7,967.78

Finding the Fourth Proportional to 14,682.39, 20,261.12 and 7,967.78

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Solution

The fourth proportional to 14,682.39, 20,261.12 and 7,967.78 is: 10,995.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,682.39 : 20,261.12 = 7,967.78 : x
  2. Step 2: Convert to fraction form
    14,682.39/20,261.12 = 7,967.78/x
  3. Step 3: Cross multiply
    14,682.39x = 20,261.12 × 7,967.78
  4. Step 4: Simplify right side
    14,682.39x = 161,436,146.71
  5. Step 5: Solve for x
    x = 161,436,146.71/14,682.39
  6. Step 6: Final answer
    x = 10,995.22

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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.