Home / 13,425.39-20,130.36-5,533.35

Finding the Fourth Proportional to 13,425.39, 20,130.36 and 5,533.35

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Solution

The fourth proportional to 13,425.39, 20,130.36 and 5,533.35 is: 8,296.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,425.39 : 20,130.36 = 5,533.35 : x
  2. Step 2: Convert to fraction form
    13,425.39/20,130.36 = 5,533.35/x
  3. Step 3: Cross multiply
    13,425.39x = 20,130.36 × 5,533.35
  4. Step 4: Simplify right side
    13,425.39x = 111,388,327.51
  5. Step 5: Solve for x
    x = 111,388,327.51/13,425.39
  6. Step 6: Final answer
    x = 8,296.84

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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.