Home / 17,638.49-26,464.64-7,770.84

Finding the Fourth Proportional to 17,638.49, 26,464.64 and 7,770.84

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Solution

The fourth proportional to 17,638.49, 26,464.64 and 7,770.84 is: 11,659.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,638.49 : 26,464.64 = 7,770.84 : x
  2. Step 2: Convert to fraction form
    17,638.49/26,464.64 = 7,770.84/x
  3. Step 3: Cross multiply
    17,638.49x = 26,464.64 × 7,770.84
  4. Step 4: Simplify right side
    17,638.49x = 205,652,444.24
  5. Step 5: Solve for x
    x = 205,652,444.24/17,638.49
  6. Step 6: Final answer
    x = 11,659.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.