Home / 8,395.84-12,585.55-3,126.99

Finding the Fourth Proportional to 8,395.84, 12,585.55 and 3,126.99

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Solution

The fourth proportional to 8,395.84, 12,585.55 and 3,126.99 is: 4,687.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,395.84 : 12,585.55 = 3,126.99 : x
  2. Step 2: Convert to fraction form
    8,395.84/12,585.55 = 3,126.99/x
  3. Step 3: Cross multiply
    8,395.84x = 12,585.55 × 3,126.99
  4. Step 4: Simplify right side
    8,395.84x = 39,354,888.99
  5. Step 5: Solve for x
    x = 39,354,888.99/8,395.84
  6. Step 6: Final answer
    x = 4,687.43

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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.