Home / 13,112.99-19,672.28-4,228.82

Finding the Fourth Proportional to 13,112.99, 19,672.28 and 4,228.82

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Solution

The fourth proportional to 13,112.99, 19,672.28 and 4,228.82 is: 6,344.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,112.99 : 19,672.28 = 4,228.82 : x
  2. Step 2: Convert to fraction form
    13,112.99/19,672.28 = 4,228.82/x
  3. Step 3: Cross multiply
    13,112.99x = 19,672.28 × 4,228.82
  4. Step 4: Simplify right side
    13,112.99x = 83,190,590.86
  5. Step 5: Solve for x
    x = 83,190,590.86/13,112.99
  6. Step 6: Final answer
    x = 6,344.14

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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.