Home / 18,675.52-28,014.80-5,348.72

Finding the Fourth Proportional to 18,675.52, 28,014.80 and 5,348.72

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Solution

The fourth proportional to 18,675.52, 28,014.80 and 5,348.72 is: 8,023.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,675.52 : 28,014.80 = 5,348.72 : x
  2. Step 2: Convert to fraction form
    18,675.52/28,014.80 = 5,348.72/x
  3. Step 3: Cross multiply
    18,675.52x = 28,014.80 × 5,348.72
  4. Step 4: Simplify right side
    18,675.52x = 149,843,321.06
  5. Step 5: Solve for x
    x = 149,843,321.06/18,675.52
  6. Step 6: Final answer
    x = 8,023.52

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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.