Home / 18,910.40-28,370.20-5,763.02

Finding the Fourth Proportional to 18,910.40, 28,370.20 and 5,763.02

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Solution

The fourth proportional to 18,910.40, 28,370.20 and 5,763.02 is: 8,645.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,910.40 : 28,370.20 = 5,763.02 : x
  2. Step 2: Convert to fraction form
    18,910.40/28,370.20 = 5,763.02/x
  3. Step 3: Cross multiply
    18,910.40x = 28,370.20 × 5,763.02
  4. Step 4: Simplify right side
    18,910.40x = 163,498,030.00
  5. Step 5: Solve for x
    x = 163,498,030.00/18,910.40
  6. Step 6: Final answer
    x = 8,645.93

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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.