Home / 13,203.40-19,781.10-10,448.20

Finding the Fourth Proportional to 13,203.40, 19,781.10 and 10,448.20

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Solution

The fourth proportional to 13,203.40, 19,781.10 and 10,448.20 is: 15,653.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,203.40 : 19,781.10 = 10,448.20 : x
  2. Step 2: Convert to fraction form
    13,203.40/19,781.10 = 10,448.20/x
  3. Step 3: Cross multiply
    13,203.40x = 19,781.10 × 10,448.20
  4. Step 4: Simplify right side
    13,203.40x = 206,676,889.02
  5. Step 5: Solve for x
    x = 206,676,889.02/13,203.40
  6. Step 6: Final answer
    x = 15,653.31

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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.