Home / 13,218.49-19,825.48-4,333.65

Finding the Fourth Proportional to 13,218.49, 19,825.48 and 4,333.65

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Solution

The fourth proportional to 13,218.49, 19,825.48 and 4,333.65 is: 6,499.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,218.49 : 19,825.48 = 4,333.65 : x
  2. Step 2: Convert to fraction form
    13,218.49/19,825.48 = 4,333.65/x
  3. Step 3: Cross multiply
    13,218.49x = 19,825.48 × 4,333.65
  4. Step 4: Simplify right side
    13,218.49x = 85,916,691.40
  5. Step 5: Solve for x
    x = 85,916,691.40/13,218.49
  6. Step 6: Final answer
    x = 6,499.74

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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.