Home / 13,335.84-18,405.83-7,958.66

Finding the Fourth Proportional to 13,335.84, 18,405.83 and 7,958.66

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Solution

The fourth proportional to 13,335.84, 18,405.83 and 7,958.66 is: 10,984.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,335.84 : 18,405.83 = 7,958.66 : x
  2. Step 2: Convert to fraction form
    13,335.84/18,405.83 = 7,958.66/x
  3. Step 3: Cross multiply
    13,335.84x = 18,405.83 × 7,958.66
  4. Step 4: Simplify right side
    13,335.84x = 146,485,670.86
  5. Step 5: Solve for x
    x = 146,485,670.86/13,335.84
  6. Step 6: Final answer
    x = 10,984.36

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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.