Home / 12,801.51-19,205.10-5,412.29

Finding the Fourth Proportional to 12,801.51, 19,205.10 and 5,412.29

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Solution

The fourth proportional to 12,801.51, 19,205.10 and 5,412.29 is: 8,119.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,801.51 : 19,205.10 = 5,412.29 : x
  2. Step 2: Convert to fraction form
    12,801.51/19,205.10 = 5,412.29/x
  3. Step 3: Cross multiply
    12,801.51x = 19,205.10 × 5,412.29
  4. Step 4: Simplify right side
    12,801.51x = 103,943,474.65
  5. Step 5: Solve for x
    x = 103,943,474.65/12,801.51
  6. Step 6: Final answer
    x = 8,119.63

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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.