Home / 8,354.79-12,518.99-3,082.55

Finding the Fourth Proportional to 8,354.79, 12,518.99 and 3,082.55

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Solution

The fourth proportional to 8,354.79, 12,518.99 and 3,082.55 is: 4,618.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,354.79 : 12,518.99 = 3,082.55 : x
  2. Step 2: Convert to fraction form
    8,354.79/12,518.99 = 3,082.55/x
  3. Step 3: Cross multiply
    8,354.79x = 12,518.99 × 3,082.55
  4. Step 4: Simplify right side
    8,354.79x = 38,590,357.74
  5. Step 5: Solve for x
    x = 38,590,357.74/8,354.79
  6. Step 6: Final answer
    x = 4,618.95

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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.