Home / 8,378.95-12,569.97-2,756.94

Finding the Fourth Proportional to 8,378.95, 12,569.97 and 2,756.94

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Solution

The fourth proportional to 8,378.95, 12,569.97 and 2,756.94 is: 4,135.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,378.95 : 12,569.97 = 2,756.94 : x
  2. Step 2: Convert to fraction form
    8,378.95/12,569.97 = 2,756.94/x
  3. Step 3: Cross multiply
    8,378.95x = 12,569.97 × 2,756.94
  4. Step 4: Simplify right side
    8,378.95x = 34,654,612.42
  5. Step 5: Solve for x
    x = 34,654,612.42/8,378.95
  6. Step 6: Final answer
    x = 4,135.91

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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.