Home / 13,163.40-19,746.09-4,398.30

Finding the Fourth Proportional to 13,163.40, 19,746.09 and 4,398.30

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Solution

The fourth proportional to 13,163.40, 19,746.09 and 4,398.30 is: 6,597.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,163.40 : 19,746.09 = 4,398.30 : x
  2. Step 2: Convert to fraction form
    13,163.40/19,746.09 = 4,398.30/x
  3. Step 3: Cross multiply
    13,163.40x = 19,746.09 × 4,398.30
  4. Step 4: Simplify right side
    13,163.40x = 86,849,227.65
  5. Step 5: Solve for x
    x = 86,849,227.65/13,163.40
  6. Step 6: Final answer
    x = 6,597.78

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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.