Home / 13,330.83-18,393.72-7,951.84

Finding the Fourth Proportional to 13,330.83, 18,393.72 and 7,951.84

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Solution

The fourth proportional to 13,330.83, 18,393.72 and 7,951.84 is: 10,971.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,330.83 : 18,393.72 = 7,951.84 : x
  2. Step 2: Convert to fraction form
    13,330.83/18,393.72 = 7,951.84/x
  3. Step 3: Cross multiply
    13,330.83x = 18,393.72 × 7,951.84
  4. Step 4: Simplify right side
    13,330.83x = 146,263,918.44
  5. Step 5: Solve for x
    x = 146,263,918.44/13,330.83
  6. Step 6: Final answer
    x = 10,971.85

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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.