Home / 12,465.80-18,699.66-3,700.69

Finding the Fourth Proportional to 12,465.80, 18,699.66 and 3,700.69

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Solution

The fourth proportional to 12,465.80, 18,699.66 and 3,700.69 is: 5,551.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,465.80 : 18,699.66 = 3,700.69 : x
  2. Step 2: Convert to fraction form
    12,465.80/18,699.66 = 3,700.69/x
  3. Step 3: Cross multiply
    12,465.80x = 18,699.66 × 3,700.69
  4. Step 4: Simplify right side
    12,465.80x = 69,201,598.02
  5. Step 5: Solve for x
    x = 69,201,598.02/12,465.80
  6. Step 6: Final answer
    x = 5,551.32

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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.