Home / 12,465.07-18,700.68-3,699.98

Finding the Fourth Proportional to 12,465.07, 18,700.68 and 3,699.98

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Solution

The fourth proportional to 12,465.07, 18,700.68 and 3,699.98 is: 5,550.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,465.07 : 18,700.68 = 3,699.98 : x
  2. Step 2: Convert to fraction form
    12,465.07/18,700.68 = 3,699.98/x
  3. Step 3: Cross multiply
    12,465.07x = 18,700.68 × 3,699.98
  4. Step 4: Simplify right side
    12,465.07x = 69,192,202.61
  5. Step 5: Solve for x
    x = 69,192,202.61/12,465.07
  6. Step 6: Final answer
    x = 5,550.89

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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.