Home / 8,715.53-13,069.83-3,165.84

Finding the Fourth Proportional to 8,715.53, 13,069.83 and 3,165.84

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Solution

The fourth proportional to 8,715.53, 13,069.83 and 3,165.84 is: 4,747.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,715.53 : 13,069.83 = 3,165.84 : x
  2. Step 2: Convert to fraction form
    8,715.53/13,069.83 = 3,165.84/x
  3. Step 3: Cross multiply
    8,715.53x = 13,069.83 × 3,165.84
  4. Step 4: Simplify right side
    8,715.53x = 41,376,990.61
  5. Step 5: Solve for x
    x = 41,376,990.61/8,715.53
  6. Step 6: Final answer
    x = 4,747.50

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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.