Home / 18,857.23-28,284.95-6,377.76

Finding the Fourth Proportional to 18,857.23, 28,284.95 and 6,377.76

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Solution

The fourth proportional to 18,857.23, 28,284.95 and 6,377.76 is: 9,566.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,857.23 : 28,284.95 = 6,377.76 : x
  2. Step 2: Convert to fraction form
    18,857.23/28,284.95 = 6,377.76/x
  3. Step 3: Cross multiply
    18,857.23x = 28,284.95 × 6,377.76
  4. Step 4: Simplify right side
    18,857.23x = 180,394,638.66
  5. Step 5: Solve for x
    x = 180,394,638.66/18,857.23
  6. Step 6: Final answer
    x = 9,566.34

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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.