Home / 11,988.10-17,987.33-6,434.96

Finding the Fourth Proportional to 11,988.10, 17,987.33 and 6,434.96

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Solution

The fourth proportional to 11,988.10, 17,987.33 and 6,434.96 is: 9,655.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,988.10 : 17,987.33 = 6,434.96 : x
  2. Step 2: Convert to fraction form
    11,988.10/17,987.33 = 6,434.96/x
  3. Step 3: Cross multiply
    11,988.10x = 17,987.33 × 6,434.96
  4. Step 4: Simplify right side
    11,988.10x = 115,747,754.73
  5. Step 5: Solve for x
    x = 115,747,754.73/11,988.10
  6. Step 6: Final answer
    x = 9,655.22

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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.