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Finding the Fourth Proportional to 12,037.80, 18,050.10 and 3,715.53

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Solution

The fourth proportional to 12,037.80, 18,050.10 and 3,715.53 is: 5,571.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,037.80 : 18,050.10 = 3,715.53 : x
  2. Step 2: Convert to fraction form
    12,037.80/18,050.10 = 3,715.53/x
  3. Step 3: Cross multiply
    12,037.80x = 18,050.10 × 3,715.53
  4. Step 4: Simplify right side
    12,037.80x = 67,065,688.05
  5. Step 5: Solve for x
    x = 67,065,688.05/12,037.80
  6. Step 6: Final answer
    x = 5,571.26

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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.