Home / 12,999.53-19,499.29-4,679.36

Finding the Fourth Proportional to 12,999.53, 19,499.29 and 4,679.36

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Solution

The fourth proportional to 12,999.53, 19,499.29 and 4,679.36 is: 7,019.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,999.53 : 19,499.29 = 4,679.36 : x
  2. Step 2: Convert to fraction form
    12,999.53/19,499.29 = 4,679.36/x
  3. Step 3: Cross multiply
    12,999.53x = 19,499.29 × 4,679.36
  4. Step 4: Simplify right side
    12,999.53x = 91,244,174.74
  5. Step 5: Solve for x
    x = 91,244,174.74/12,999.53
  6. Step 6: Final answer
    x = 7,019.04

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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.