Home / 12,755.18-17,602.13-7,089.75

Finding the Fourth Proportional to 12,755.18, 17,602.13 and 7,089.75

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Solution

The fourth proportional to 12,755.18, 17,602.13 and 7,089.75 is: 9,783.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,755.18 : 17,602.13 = 7,089.75 : x
  2. Step 2: Convert to fraction form
    12,755.18/17,602.13 = 7,089.75/x
  3. Step 3: Cross multiply
    12,755.18x = 17,602.13 × 7,089.75
  4. Step 4: Simplify right side
    12,755.18x = 124,794,613.16
  5. Step 5: Solve for x
    x = 124,794,613.16/12,755.18
  6. Step 6: Final answer
    x = 9,783.84

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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.