Home / 12,770.32-17,623.38-7,735.45

Finding the Fourth Proportional to 12,770.32, 17,623.38 and 7,735.45

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Solution

The fourth proportional to 12,770.32, 17,623.38 and 7,735.45 is: 10,675.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,770.32 : 17,623.38 = 7,735.45 : x
  2. Step 2: Convert to fraction form
    12,770.32/17,623.38 = 7,735.45/x
  3. Step 3: Cross multiply
    12,770.32x = 17,623.38 × 7,735.45
  4. Step 4: Simplify right side
    12,770.32x = 136,324,774.82
  5. Step 5: Solve for x
    x = 136,324,774.82/12,770.32
  6. Step 6: Final answer
    x = 10,675.13

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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.