Home / 11,686.64-17,531.10-4,289.34

Finding the Fourth Proportional to 11,686.64, 17,531.10 and 4,289.34

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Solution

The fourth proportional to 11,686.64, 17,531.10 and 4,289.34 is: 6,434.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,686.64 : 17,531.10 = 4,289.34 : x
  2. Step 2: Convert to fraction form
    11,686.64/17,531.10 = 4,289.34/x
  3. Step 3: Cross multiply
    11,686.64x = 17,531.10 × 4,289.34
  4. Step 4: Simplify right side
    11,686.64x = 75,196,848.47
  5. Step 5: Solve for x
    x = 75,196,848.47/11,686.64
  6. Step 6: Final answer
    x = 6,434.43

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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.