Home / 13,160.46-18,166.47-8,125.50

Finding the Fourth Proportional to 13,160.46, 18,166.47 and 8,125.50

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Solution

The fourth proportional to 13,160.46, 18,166.47 and 8,125.50 is: 11,216.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,160.46 : 18,166.47 = 8,125.50 : x
  2. Step 2: Convert to fraction form
    13,160.46/18,166.47 = 8,125.50/x
  3. Step 3: Cross multiply
    13,160.46x = 18,166.47 × 8,125.50
  4. Step 4: Simplify right side
    13,160.46x = 147,611,651.99
  5. Step 5: Solve for x
    x = 147,611,651.99/13,160.46
  6. Step 6: Final answer
    x = 11,216.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.