Home / 12,122.76-18,184.14-3,803.50

Finding the Fourth Proportional to 12,122.76, 18,184.14 and 3,803.50

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Solution

The fourth proportional to 12,122.76, 18,184.14 and 3,803.50 is: 5,705.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,122.76 : 18,184.14 = 3,803.50 : x
  2. Step 2: Convert to fraction form
    12,122.76/18,184.14 = 3,803.50/x
  3. Step 3: Cross multiply
    12,122.76x = 18,184.14 × 3,803.50
  4. Step 4: Simplify right side
    12,122.76x = 69,163,376.49
  5. Step 5: Solve for x
    x = 69,163,376.49/12,122.76
  6. Step 6: Final answer
    x = 5,705.25

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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.