Home / 12,699.77-19,045.44-4,379.58

Finding the Fourth Proportional to 12,699.77, 19,045.44 and 4,379.58

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Solution

The fourth proportional to 12,699.77, 19,045.44 and 4,379.58 is: 6,567.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,699.77 : 19,045.44 = 4,379.58 : x
  2. Step 2: Convert to fraction form
    12,699.77/19,045.44 = 4,379.58/x
  3. Step 3: Cross multiply
    12,699.77x = 19,045.44 × 4,379.58
  4. Step 4: Simplify right side
    12,699.77x = 83,411,028.12
  5. Step 5: Solve for x
    x = 83,411,028.12/12,699.77
  6. Step 6: Final answer
    x = 6,567.92

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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.