Home / 8,089.41-12,138.75-4,391.95

Finding the Fourth Proportional to 8,089.41, 12,138.75 and 4,391.95

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Solution

The fourth proportional to 8,089.41, 12,138.75 and 4,391.95 is: 6,590.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,089.41 : 12,138.75 = 4,391.95 : x
  2. Step 2: Convert to fraction form
    8,089.41/12,138.75 = 4,391.95/x
  3. Step 3: Cross multiply
    8,089.41x = 12,138.75 × 4,391.95
  4. Step 4: Simplify right side
    8,089.41x = 53,312,730.76
  5. Step 5: Solve for x
    x = 53,312,730.76/8,089.41
  6. Step 6: Final answer
    x = 6,590.44

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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.