Home / 12,501.50-18,741.22-4,715.78

Finding the Fourth Proportional to 12,501.50, 18,741.22 and 4,715.78

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Solution

The fourth proportional to 12,501.50, 18,741.22 and 4,715.78 is: 7,069.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,501.50 : 18,741.22 = 4,715.78 : x
  2. Step 2: Convert to fraction form
    12,501.50/18,741.22 = 4,715.78/x
  3. Step 3: Cross multiply
    12,501.50x = 18,741.22 × 4,715.78
  4. Step 4: Simplify right side
    12,501.50x = 88,379,505.52
  5. Step 5: Solve for x
    x = 88,379,505.52/12,501.50
  6. Step 6: Final answer
    x = 7,069.51

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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.