Home / 12,699.12-19,051.73-5,299.47

Finding the Fourth Proportional to 12,699.12, 19,051.73 and 5,299.47

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Solution

The fourth proportional to 12,699.12, 19,051.73 and 5,299.47 is: 7,950.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,699.12 : 19,051.73 = 5,299.47 : x
  2. Step 2: Convert to fraction form
    12,699.12/19,051.73 = 5,299.47/x
  3. Step 3: Cross multiply
    12,699.12x = 19,051.73 × 5,299.47
  4. Step 4: Simplify right side
    12,699.12x = 100,964,071.58
  5. Step 5: Solve for x
    x = 100,964,071.58/12,699.12
  6. Step 6: Final answer
    x = 7,950.48

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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.