Home / 8,930.19-13,378.23-5,421.27

Finding the Fourth Proportional to 8,930.19, 13,378.23 and 5,421.27

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Solution

The fourth proportional to 8,930.19, 13,378.23 and 5,421.27 is: 8,121.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,930.19 : 13,378.23 = 5,421.27 : x
  2. Step 2: Convert to fraction form
    8,930.19/13,378.23 = 5,421.27/x
  3. Step 3: Cross multiply
    8,930.19x = 13,378.23 × 5,421.27
  4. Step 4: Simplify right side
    8,930.19x = 72,526,996.95
  5. Step 5: Solve for x
    x = 72,526,996.95/8,930.19
  6. Step 6: Final answer
    x = 8,121.55

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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.