Home / 13,989.66-19,304.34-8,019.96

Finding the Fourth Proportional to 13,989.66, 19,304.34 and 8,019.96

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Solution

The fourth proportional to 13,989.66, 19,304.34 and 8,019.96 is: 11,066.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,989.66 : 19,304.34 = 8,019.96 : x
  2. Step 2: Convert to fraction form
    13,989.66/19,304.34 = 8,019.96/x
  3. Step 3: Cross multiply
    13,989.66x = 19,304.34 × 8,019.96
  4. Step 4: Simplify right side
    13,989.66x = 154,820,034.63
  5. Step 5: Solve for x
    x = 154,820,034.63/13,989.66
  6. Step 6: Final answer
    x = 11,066.75

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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.