Home / 17,915.76-26,875.60-6,078.08

Finding the Fourth Proportional to 17,915.76, 26,875.60 and 6,078.08

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Solution

The fourth proportional to 17,915.76, 26,875.60 and 6,078.08 is: 9,117.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,915.76 : 26,875.60 = 6,078.08 : x
  2. Step 2: Convert to fraction form
    17,915.76/26,875.60 = 6,078.08/x
  3. Step 3: Cross multiply
    17,915.76x = 26,875.60 × 6,078.08
  4. Step 4: Simplify right side
    17,915.76x = 163,352,046.85
  5. Step 5: Solve for x
    x = 163,352,046.85/17,915.76
  6. Step 6: Final answer
    x = 9,117.78

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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.