Home / 15,385.58-23,120.04-8,370.77

Finding the Fourth Proportional to 15,385.58, 23,120.04 and 8,370.77

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Solution

The fourth proportional to 15,385.58, 23,120.04 and 8,370.77 is: 12,578.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,385.58 : 23,120.04 = 8,370.77 : x
  2. Step 2: Convert to fraction form
    15,385.58/23,120.04 = 8,370.77/x
  3. Step 3: Cross multiply
    15,385.58x = 23,120.04 × 8,370.77
  4. Step 4: Simplify right side
    15,385.58x = 193,532,537.23
  5. Step 5: Solve for x
    x = 193,532,537.23/15,385.58
  6. Step 6: Final answer
    x = 12,578.83

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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.