Home / 12,531.50-17,293.69-6,865.88

Finding the Fourth Proportional to 12,531.50, 17,293.69 and 6,865.88

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Solution

The fourth proportional to 12,531.50, 17,293.69 and 6,865.88 is: 9,475.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,531.50 : 17,293.69 = 6,865.88 : x
  2. Step 2: Convert to fraction form
    12,531.50/17,293.69 = 6,865.88/x
  3. Step 3: Cross multiply
    12,531.50x = 17,293.69 × 6,865.88
  4. Step 4: Simplify right side
    12,531.50x = 118,736,322.41
  5. Step 5: Solve for x
    x = 118,736,322.41/12,531.50
  6. Step 6: Final answer
    x = 9,475.03

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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.