Home / 13,919.13-19,208.46-8,330.13

Finding the Fourth Proportional to 13,919.13, 19,208.46 and 8,330.13

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Solution

The fourth proportional to 13,919.13, 19,208.46 and 8,330.13 is: 11,495.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,919.13 : 19,208.46 = 8,330.13 : x
  2. Step 2: Convert to fraction form
    13,919.13/19,208.46 = 8,330.13/x
  3. Step 3: Cross multiply
    13,919.13x = 19,208.46 × 8,330.13
  4. Step 4: Simplify right side
    13,919.13x = 160,008,968.90
  5. Step 5: Solve for x
    x = 160,008,968.90/13,919.13
  6. Step 6: Final answer
    x = 11,495.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.