Home / 13,239.66-19,854.48-5,339.49

Finding the Fourth Proportional to 13,239.66, 19,854.48 and 5,339.49

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Solution

The fourth proportional to 13,239.66, 19,854.48 and 5,339.49 is: 8,007.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,239.66 : 19,854.48 = 5,339.49 : x
  2. Step 2: Convert to fraction form
    13,239.66/19,854.48 = 5,339.49/x
  3. Step 3: Cross multiply
    13,239.66x = 19,854.48 × 5,339.49
  4. Step 4: Simplify right side
    13,239.66x = 106,012,797.42
  5. Step 5: Solve for x
    x = 106,012,797.42/13,239.66
  6. Step 6: Final answer
    x = 8,007.21

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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.