Home / 12,743.16-17,584.18-7,709.41

Finding the Fourth Proportional to 12,743.16, 17,584.18 and 7,709.41

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Solution

The fourth proportional to 12,743.16, 17,584.18 and 7,709.41 is: 10,638.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,743.16 : 17,584.18 = 7,709.41 : x
  2. Step 2: Convert to fraction form
    12,743.16/17,584.18 = 7,709.41/x
  3. Step 3: Cross multiply
    12,743.16x = 17,584.18 × 7,709.41
  4. Step 4: Simplify right side
    12,743.16x = 135,563,653.13
  5. Step 5: Solve for x
    x = 135,563,653.13/12,743.16
  6. Step 6: Final answer
    x = 10,638.15

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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.