Home / 13,410.51-20,122.59-5,519.10

Finding the Fourth Proportional to 13,410.51, 20,122.59 and 5,519.10

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Solution

The fourth proportional to 13,410.51, 20,122.59 and 5,519.10 is: 8,281.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,410.51 : 20,122.59 = 5,519.10 : x
  2. Step 2: Convert to fraction form
    13,410.51/20,122.59 = 5,519.10/x
  3. Step 3: Cross multiply
    13,410.51x = 20,122.59 × 5,519.10
  4. Step 4: Simplify right side
    13,410.51x = 111,058,586.47
  5. Step 5: Solve for x
    x = 111,058,586.47/13,410.51
  6. Step 6: Final answer
    x = 8,281.46

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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.