Home / 13,230.36-19,835.82-6,309.72

Finding the Fourth Proportional to 13,230.36, 19,835.82 and 6,309.72

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Solution

The fourth proportional to 13,230.36, 19,835.82 and 6,309.72 is: 9,459.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,230.36 : 19,835.82 = 6,309.72 : x
  2. Step 2: Convert to fraction form
    13,230.36/19,835.82 = 6,309.72/x
  3. Step 3: Cross multiply
    13,230.36x = 19,835.82 × 6,309.72
  4. Step 4: Simplify right side
    13,230.36x = 125,158,470.17
  5. Step 5: Solve for x
    x = 125,158,470.17/13,230.36
  6. Step 6: Final answer
    x = 9,459.94

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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.