Home / 13,377.03-18,458.71-7,713.63

Finding the Fourth Proportional to 13,377.03, 18,458.71 and 7,713.63

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Solution

The fourth proportional to 13,377.03, 18,458.71 and 7,713.63 is: 10,643.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,377.03 : 18,458.71 = 7,713.63 : x
  2. Step 2: Convert to fraction form
    13,377.03/18,458.71 = 7,713.63/x
  3. Step 3: Cross multiply
    13,377.03x = 18,458.71 × 7,713.63
  4. Step 4: Simplify right side
    13,377.03x = 142,383,659.22
  5. Step 5: Solve for x
    x = 142,383,659.22/13,377.03
  6. Step 6: Final answer
    x = 10,643.90

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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.